MinT - Best Known (18−4, 18, s)-Nets in Base 64

Best Known (18−4, 18, s)-Nets in Base 64

(18−4, 18, large)-Net over F₆₄ — Constructive and digital

Digital (14, 18, large)-net over F₆₄, using

64² times duplication [i] based on digital (12, 16, large)-net over F₆₄, using
- net defined by OOA [i] based on linear OOA(64¹⁶, large, F₆₄, 4, 4), using
  - appending kth column [i] based on linear OOA(64¹⁶, large, F₆₄, 3, 4), using
    - generalized (u,Â u+v)-construction [i] based on
      1. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code), using
        discarding factors / shortening the dual code based on linear OOA(64⁰, s, F₆₄, 3, 0) with arbitrarily large s, using
        OOA with only one run / dual of NRT-code without redundancy [i]
      2. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      3. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      4. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      5. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      6. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      7. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      8. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      9. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      10. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      11. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      12. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      13. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      14. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      15. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      16. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      17. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      18. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      19. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      20. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      21. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      22. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      23. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      24. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      25. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      26. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      27. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      28. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      29. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      30. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      31. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      32. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      33. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      34. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      35. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      36. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      37. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      38. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      39. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      40. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      41. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      42. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      43. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      44. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      45. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      46. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      47. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      48. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      49. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      50. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      51. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      52. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      53. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      54. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      55. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      56. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      57. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      58. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      59. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      60. linear OOA(64⁰, 131073, F₆₄, 3, 0) (dual of [(131073, 3), 393219, 1]-NRT-code) (see above)
      61. linear OOA(64¹, 131073, F₆₄, 3, 1) (dual of [(131073, 3), 393218, 2]-NRT-code), using
        discarding factors / shortening the dual code based on linear OOA(64¹, s, F₆₄, 3, 1) with arbitrarily large s, using
        appending 2 arbitrary columns [i] based on linear OA(64¹, s, F₆₄, 1) (dual of [s, s−1, 2]-code) with arbitrarily large s, using
        parity-check code [i]
      62. linear OOA(64¹, 131073, F₆₄, 3, 1) (dual of [(131073, 3), 393218, 2]-NRT-code) (see above)
      63. linear OOA(64⁴, 131073, F₆₄, 3, 2) (dual of [(131073, 3), 393215, 3]-NRT-code), using
        discarding factors / shortening the dual code based on linear OOA(64⁴, 266305, F₆₄, 3, 2) (dual of [(266305, 3), 798911, 3]-NRT-code), using
        appending 1 arbitrary column [i] based on linear OOA(64⁴, 266305, F₆₄, 2, 2) (dual of [(266305, 2), 532606, 3]-NRT-code), using
        appending kth column [i] based on linear OA(64⁴, 266305, F₆₄, 2) (dual of [266305, 266301, 3]-code), using
        Hamming code H(4,64) [i]
      64. linear OOA(64¹⁰, 131073, F₆₄, 3, 4) (dual of [(131073, 3), 393209, 5]-NRT-code), using
        OA 2-folding and stacking [i] based on linear OA(64¹⁰, 262146, F₆₄, 4) (dual of [262146, 262136, 5]-code), using
        discarding factors / shortening the dual code based on linear OA(64¹⁰, 262147, F₆₄, 4) (dual of [262147, 262137, 5]-code), using
        constructionÂ X applied to C_e(3) âŠ‚ C_e(2) [i] based on
        linear OA(64¹⁰, 262144, F₆₄, 4) (dual of [262144, 262134, 5]-code), using an extension C_e(3) of the primitive narrow-sense BCH-code C(I) with length 262143Â = 64³âˆ’1, defining interval IÂ =Â [1,3], and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 4 [i]
        linear OA(64⁷, 262144, F₆₄, 3) (dual of [262144, 262137, 4]-code or 262144-cap in PG(6,64)), using an extension C_e(2) of the primitive narrow-sense BCH-code C(I) with length 262143Â = 64³âˆ’1, defining interval IÂ =Â [1,2], and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 3 [i]
        linear OA(64⁰, 3, F₆₄, 0) (dual of [3, 3, 1]-code), using
        discarding factors / shortening the dual code based on linear OA(64⁰, s, F₆₄, 0) (dual of [s, s, 1]-code) with arbitrarily large s, using
        OA with only one run / dual of code without redundancy [i]

(18−4, 18, large)-Net in Base 64 — Upper bound on s

There is no (14, 18, large)-net in base 64, because

2 times m-reduction [i] would yield (14, 16, large)-net in base 64, but
- mutually orthogonal hypercube bound [i]

Best Known (18−4, 18, s)-Nets in Base 64

(18−4, 18, large)-Net over F64 — Constructive and digital

(18−4, 18, large)-Net in Base 64 — Upper bound on s

(18−4, 18, large)-Net over F₆₄ — Constructive and digital