Best Known (6−4, 6, s)-Nets in Base 4
(6−4, 6, 21)-Net over F4 — Constructive and digital
Digital (2, 6, 21)-net over F4, using
(6−4, 6, 28)-Net in Base 4 — Upper bound on s
There is no (2, 6, 29)-net in base 4, because
- extracting embedded OOA [i] would yield OOA(46, 29, S4, 2, 4), but
- the linear programming bound for OOAs shows that M ≥ 1 324544 / 317 > 46 [i]