MinT - Best Known (72, 72+30, s)-Nets in Base 4

Best Known (72, 72+30, s)-Nets in Base 4

Digital (72, 102, 312)-net over F₄, using

t-expansion [i] based on digital (71, 102, 312)-net over F₄, using
- trace code for nets [i] based on digital (3, 34, 104)-net over F₆₄, using
  - net from sequence [i] based on digital (3, 103)-sequence over F₆₄, using
    - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₆₄ with g(F) = 3 and N(F) ≥ 104, using
      - a function field by SÃ©mirat [i]

Digital (72, 102, 525)-net over F₄, using

embedding of OOA with Gilbertâ€“VarÅ¡amov bound [i] based on linear OA(4¹⁰², 525, F₄, 30) (dual of [525, 423, 31]-code), using
- 422 step VarÅ¡amovâ€“Edel lengthening with (r_i)Â = (8, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 4 times 0, 1, 4 times 0, 1, 4 times 0, 1, 5 times 0, 1, 5 times 0, 1, 5 times 0, 1, 5 times 0, 1, 6 times 0, 1, 7 times 0, 1, 6 times 0, 1, 7 times 0, 1, 8 times 0, 1, 8 times 0, 1, 9 times 0, 1, 9 times 0, 1, 10 times 0, 1, 10 times 0, 1, 11 times 0, 1, 11 times 0, 1, 12 times 0, 1, 13 times 0, 1, 13 times 0, 1, 14 times 0, 1, 15 times 0, 1, 16 times 0, 1, 17 times 0, 1, 18 times 0, 1, 18 times 0, 1, 20 times 0, 1, 21 times 0, 1, 22 times 0) [i] based on linear OA(4³⁰, 31, F₄, 30) (dual of [31, 1, 31]-code or 31-arc in PG(29,4)), using
  - dual of repetition code with length 31 [i]

There is no (72, 102, 26575)-net in base 4, because

the generalized Rao bound for nets shows that 4^mÂ â‰¥ 25 725198 064605 073671 779787 798362 127902 999845 562274 233487 403036 > 4¹⁰² [i]