MinT - Best Known (69, 69+160, s)-Nets in Base 4

Best Known (69, 69+160, s)-Nets in Base 4

(69, 69+160, 66)-Net over F₄ — Constructive and digital

Digital (69, 229, 66)-net over F₄, using

t-expansion [i] based on digital (49, 229, 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]

(69, 69+160, 99)-Net over F₄ — Digital

Digital (69, 229, 99)-net over F₄, using

t-expansion [i] based on digital (61, 229, 99)-net over F₄, using
- net from sequence [i] based on digital (61, 98)-sequence over F₄, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₄ with g(F) = 61 and N(F) ≥ 99, using
    - Drinfeld modules of rank 1 [i]

(69, 69+160, 476)-Net in Base 4 — Upper bound on s

There is no (69, 229, 477)-net in base 4, because

the generalized Rao bound for nets shows that 4^mÂ â‰¥ 837949 071227 147530 912220 637022 071667 435830 936258 197576 820643 870010 741753 620955 613450 339926 148924 915849 850718 512584 080171 641205 845830 902809 > 4²²⁹ [i]