MinT - Best Known (4, 4+9, s)-Nets in Base 64

Best Known (4, 4+9, s)-Nets in Base 64

(4, 4+9, 130)-Net over F₆₄ — Constructive and digital

Digital (4, 13, 130)-net over F₆₄, using

(u,Â u+v)-construction [i] based on
1. digital (0, 4, 65)-net over F₆₄, using
  - net from sequence [i] based on digital (0, 64)-sequence over F₆₄, using
    - generalized Faure sequence [i]
    - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₆₄ with g(F) = 0 and N(F) ≥ 65, using
      - the rational function field F₆₄(x) [i]
    - Niederreiter sequence [i]
2. digital (0, 9, 65)-net over F₆₄, using
  - net from sequence [i] based on digital (0, 64)-sequence over F₆₄ (see above)

(4, 4+9, 257)-Net in Base 64 — Constructive

(4, 13, 257)-net in base 64, using

3 times m-reduction [i] based on (4, 16, 257)-net in base 64, using
- base change [i] based on digital (0, 12, 257)-net over F₂₅₆, using
  - net from sequence [i] based on digital (0, 256)-sequence over F₂₅₆, using
    - generalized Faure sequence [i]
    - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₂₅₆ with g(F) = 0 and N(F) ≥ 257, using
      - the rational function field F₂₅₆(x) [i]
    - Niederreiter sequence [i]

(4, 4+9, 9208)-Net in Base 64 — Upper bound on s

There is no (4, 13, 9209)-net in base 64, because

1 times m-reduction [i] would yield (4, 12, 9209)-net in base 64, but
- the generalized Rao bound for nets shows that 64^mÂ â‰¥ 4723 846141 950590 819914 > 64¹² [i]