MinT - Best Known (21, 21+48, s)-Nets in Base 25

Best Known (21, 21+48, s)-Nets in Base 25

(21, 21+48, 148)-Net over F₂₅ — Constructive and digital

Digital (21, 69, 148)-net over F₂₅, using

t-expansion [i] based on digital (19, 69, 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+48, 171)-Net over F₂₅ — Digital

Digital (21, 69, 171)-net over F₂₅, using

t-expansion [i] based on digital (20, 69, 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+48, 4255)-Net in Base 25 — Upper bound on s

There is no (21, 69, 4256)-net in base 25, because

the generalized Rao bound for nets shows that 25^mÂ â‰¥ 2 877070 097086 967510 342361 200292 614450 683271 923903 706512 905094 156932 310925 045406 593367 051315 738625 > 25⁶⁹ [i]