MinT - Best Known (57, 181, s)-Nets in Base 4

Best Known (57, 181, s)-Nets in Base 4

(57, 181, 66)-Net over F₄ — Constructive and digital

Digital (57, 181, 66)-net over F₄, using

t-expansion [i] based on digital (49, 181, 66)-net over F₄, using
- net from sequence [i] based on digital (49, 65)-sequence over F₄, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₄ with g(F) = 49 and N(F) ≥ 66, using
    - T₆ from the second tower of function fields by GarcÃa and Stichtenoth over F₄ [i]

(57, 181, 91)-Net over F₄ — Digital

Digital (57, 181, 91)-net over F₄, using

t-expansion [i] based on digital (50, 181, 91)-net over F₄, using
- net from sequence [i] based on digital (50, 90)-sequence over F₄, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₄ with g(F) = 50 and N(F) ≥ 91, using
    - a curve from the manYPoints database [i]

(57, 181, 407)-Net in Base 4 — Upper bound on s

There is no (57, 181, 408)-net in base 4, because

the generalized Rao bound for nets shows that 4^mÂ â‰¥ 10 098421 738355 005652 598492 912461 256491 171247 299683 530399 141180 087529 270781 179655 974133 488868 623406 608136 039440 > 4¹⁸¹ [i]