MinT - Best Known (18, 18+16, s)-Nets in Base 4

Best Known (18, 18+16, s)-Nets in Base 4

(18, 18+16, 48)-Net over F₄ — Constructive and digital

Digital (18, 34, 48)-net over F₄, using

trace code for nets [i] based on digital (1, 17, 24)-net over F₁₆, using
- net from sequence [i] based on digital (1, 23)-sequence over F₁₆, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₁₆ with g(F) = 1 and N(F) ≥ 24, using
    - a function field by SÃ©mirat [i]

(18, 18+16, 50)-Net over F₄ — Digital

Digital (18, 34, 50)-net over F₄, using

trace code for nets [i] based on digital (1, 17, 25)-net over F₁₆, using
- net from sequence [i] based on digital (1, 24)-sequence over F₁₆, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₁₆ with g(F) = 1 and N(F) ≥ 25, using
    - sharp bound on the number of rational points on curves with genus 1 [i]

(18, 18+16, 448)-Net in Base 4 — Upper bound on s

There is no (18, 34, 449)-net in base 4, because

the generalized Rao bound for nets shows that 4^mÂ â‰¥ 299 613848 582692 952392 > 4³⁴ [i]