MinT - Best Known (21, 21+84, s)-Nets in Base 25

Best Known (21, 21+84, s)-Nets in Base 25

(21, 21+84, 148)-Net over F₂₅ — Constructive and digital

Digital (21, 105, 148)-net over F₂₅, using

t-expansion [i] based on digital (19, 105, 148)-net over F₂₅, using
- net from sequence [i] based on digital (19, 147)-sequence over F₂₅, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₂₅ with g(F) = 19 and N(F) ≥ 148, using
    - a function field by GarcÃa and Quoos [i]

(21, 21+84, 171)-Net over F₂₅ — Digital

Digital (21, 105, 171)-net over F₂₅, using

t-expansion [i] based on digital (20, 105, 171)-net over F₂₅, using
- net from sequence [i] based on digital (20, 170)-sequence over F₂₅, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₂₅ with g(F) = 20 and N(F) ≥ 171, using
    - an algebraic function field by Teo [i]

(21, 21+84, 2127)-Net in Base 25 — Upper bound on s

There is no (21, 105, 2128)-net in base 25, because

the generalized Rao bound for nets shows that 25^mÂ â‰¥ 609 949447 871934 399092 375047 811079 549103 816241 088282 021844 839954 862373 461264 458909 545002 414186 311117 148641 049005 941292 550284 176021 095554 965675 937025 > 25¹⁰⁵ [i]