MinT - Best Known (161, 161+83, s)-Nets in Base 4

Best Known (161, 161+83, s)-Nets in Base 4

(161, 161+83, 200)-Net over F₄ — Constructive and digital

Digital (161, 244, 200)-net over F₄, using

net from sequence [i] based on digital (161, 199)-sequence over F₄, using
- Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₄ with g(F) = 161 and N(F) ≥ 200, using
  - F₇ from the tower of function fields by GarcÃa and Stichtenoth over F₄ [i]

(161, 161+83, 240)-Net in Base 4 — Constructive

(161, 244, 240)-net in base 4, using

6 times m-reduction [i] based on (161, 250, 240)-net in base 4, using
- trace code for nets [i] based on (36, 125, 120)-net in base 16, using
  - base change [i] based on digital (11, 100, 120)-net over F₃₂, using
    - net from sequence [i] based on digital (11, 119)-sequence over F₃₂, using
      - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₃₂ with g(F) = 11 and N(F) ≥ 120, using
        a function field by SÃ©mirat [i]

(161, 161+83, 609)-Net over F₄ — Digital

Digital (161, 244, 609)-net over F₄, using

Gilbertâ€“VarÅ¡amov bound [i]

(161, 161+83, 19877)-Net in Base 4 — Upper bound on s

There is no (161, 244, 19878)-net in base 4, because

1 times m-reduction [i] would yield (161, 243, 19878)-net in base 4, but
- the generalized Rao bound for nets shows that 4^mÂ â‰¥ 199 956336 265305 786334 967944 689569 983574 882033 954392 638736 926169 555059 884689 334404 252556 595121 687508 841080 818757 220500 493733 625254 804923 903416 301520 > 4²⁴³ [i]