MinT - Best Known (18, 18+18, s)-Nets in Base 7

Best Known (18, 18+18, s)-Nets in Base 7

(18, 18+18, 100)-Net over F₇ — Constructive and digital

Digital (18, 36, 100)-net over F₇, using

trace code for nets [i] based on digital (0, 18, 50)-net over F₄₉, using
- net from sequence [i] based on digital (0, 49)-sequence over F₄₉, using
  - generalized Faure sequence [i]
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₄₉ with g(F) = 0 and N(F) ≥ 50, using
    - the rational function field F₄₉(x) [i]
  - Niederreiter sequence [i]

(18, 18+18, 1654)-Net in Base 7 — Upper bound on s

There is no (18, 36, 1655)-net in base 7, because

the generalized Rao bound for nets shows that 7^mÂ â‰¥ 2 665222 740043 570387 752363 936667 > 7³⁶ [i]