MinT - Best Known (181, 181+56, s)-Nets in Base 4

Best Known (181, 181+56, s)-Nets in Base 4

(181, 181+56, 1040)-Net over F₄ — Constructive and digital

Digital (181, 237, 1040)-net over F₄, using

4¹ times duplication [i] based on digital (180, 236, 1040)-net over F₄, using
- trace code for nets [i] based on digital (3, 59, 260)-net over F₂₅₆, using
  - net from sequence [i] based on digital (3, 259)-sequence over F₂₅₆, using
    - Niederreiter sequence [i]

(181, 181+56, 2822)-Net over F₄ — Digital

Digital (181, 237, 2822)-net over F₄, using

Gilbertâ€“VarÅ¡amov bound [i]

(181, 181+56, 469753)-Net in Base 4 — Upper bound on s

There is no (181, 237, 469754)-net in base 4, because

the generalized Rao bound for nets shows that 4^mÂ â‰¥ 48777 438409 254522 418165 687551 233987 215738 205287 292894 898674 831342 901446 383198 701985 609768 475939 670334 231462 001998 824342 095354 270731 644499 712968 > 4²³⁷ [i]