Best Known (21, 21+69, s)-Nets in Base 9
(21, 21+69, 74)-Net over F9 — Constructive and digital
Digital (21, 90, 74)-net over F9, using
- t-expansion [i] based on digital (17, 90, 74)-net over F9, using
- net from sequence [i] based on digital (17, 73)-sequence over F9, using
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F9 with g(F) = 17 and N(F) ≥ 74, using
- net from sequence [i] based on digital (17, 73)-sequence over F9, using
(21, 21+69, 88)-Net over F9 — Digital
Digital (21, 90, 88)-net over F9, using
- net from sequence [i] based on digital (21, 87)-sequence over F9, using
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F9 with g(F) = 21 and N(F) ≥ 88, using
(21, 21+69, 511)-Net in Base 9 — Upper bound on s
There is no (21, 90, 512)-net in base 9, because
- 1 times m-reduction [i] would yield (21, 89, 512)-net in base 9, but
- the generalized Rao bound for nets shows that 9m ≥ 8 514899 868098 919737 188437 403260 021915 820538 327097 196753 215976 600927 581822 321924 399105 > 989 [i]