MinT - Best Known (149, 149+50, s)-Nets in Base 4

Best Known (149, 149+50, s)-Nets in Base 4

(149, 149+50, 545)-Net over F₄ — Constructive and digital

Digital (149, 199, 545)-net over F₄, using

(u,Â u+v)-construction [i] based on
1. digital (3, 28, 14)-net over F₄, using
  - net from sequence [i] based on digital (3, 13)-sequence over F₄, using
    - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₄ with g(F) = 3 and N(F) ≥ 14, using
      - an explicitly constructive algebraic function field [i]
2. digital (121, 171, 531)-net over F₄, using
  - trace code for nets [i] based on digital (7, 57, 177)-net over F₆₄, using
    - net from sequence [i] based on digital (7, 176)-sequence over F₆₄, using
      - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₆₄ with g(F) = 7 and N(F) ≥ 177, using
        a function field by GarcÃa and Quoos [i]

(149, 149+50, 648)-Net in Base 4 — Constructive

(149, 199, 648)-net in base 4, using

2 times m-reduction [i] based on (149, 201, 648)-net in base 4, using
- trace code for nets [i] based on (15, 67, 216)-net in base 64, using
  - 3 times m-reduction [i] based on (15, 70, 216)-net in base 64, using
    - base change [i] based on digital (5, 60, 216)-net over F₁₂₈, using
      - net from sequence [i] based on digital (5, 215)-sequence over F₁₂₈, using
        Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₁₂₈ with g(F) = 5 and N(F) ≥ 216, using
        a function field by SÃ©mirat [i]

(149, 149+50, 1800)-Net over F₄ — Digital

Digital (149, 199, 1800)-net over F₄, using

Gilbertâ€“VarÅ¡amov bound [i]

(149, 149+50, 210310)-Net in Base 4 — Upper bound on s

There is no (149, 199, 210311)-net in base 4, because

the generalized Rao bound for nets shows that 4^mÂ â‰¥ 645631 963653 001221 734172 619499 393217 617967 638367 845109 227183 883587 234190 157204 367200 952172 570889 514418 553073 547702 940000 > 4¹⁹⁹ [i]