MinT - Best Known (20, 56, s)-Nets in Base 3

Best Known (20, 56, s)-Nets in Base 3

(20, 56, 28)-Net over F₃ — Constructive and digital

Digital (20, 56, 28)-net over F₃, using

t-expansion [i] based on digital (15, 56, 28)-net over F₃, using
- net from sequence [i] based on digital (15, 27)-sequence over F₃, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₃ with g(F) = 15 and N(F) ≥ 28, using
    - an explicitly constructive algebraic function field [i]

(20, 56, 32)-Net over F₃ — Digital

Digital (20, 56, 32)-net over F₃, using

t-expansion [i] based on digital (19, 56, 32)-net over F₃, using
- net from sequence [i] based on digital (19, 31)-sequence over F₃, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₃ with g(F) = 19 and N(F) ≥ 32, using
    - a curve from the manYPoints database [i]

(20, 56, 81)-Net in Base 3 — Upper bound on s

There is no (20, 56, 82)-net in base 3, because

extracting embedded orthogonal array [i] would yield OA(3⁵⁶, 82, S₃, 36), but
- the linear programming bound shows that MÂ â‰¥ 22 210757 880743 651212 289611 731958 871349 324330 / 41077 125622 806623 > 3⁵⁶ [i]