Best Known (30, 40, s)-Nets in Base 64
(30, 40, 1677720)-Net over F64 — Constructive and digital
Digital (30, 40, 1677720)-net over F64, using
- 1 times m-reduction [i] based on digital (30, 41, 1677720)-net over F64, using
- net defined by OOA [i] based on linear OOA(6441, 1677720, F64, 11, 11) (dual of [(1677720, 11), 18454879, 12]-NRT-code), using
- OOA 5-folding and stacking with additional row [i] based on linear OA(6441, 8388601, F64, 11) (dual of [8388601, 8388560, 12]-code), using
- discarding factors / shortening the dual code based on linear OA(6441, large, F64, 11) (dual of [large, large−41, 12]-code), using
- the expurgated narrow-sense BCH-code C(I) with length 16777217 | 648−1, defining interval I = [0,5], and minimum distance d ≥ |{−5,−4,…,5}|+1 = 12 (BCH-bound) [i]
- discarding factors / shortening the dual code based on linear OA(6441, large, F64, 11) (dual of [large, large−41, 12]-code), using
- OOA 5-folding and stacking with additional row [i] based on linear OA(6441, 8388601, F64, 11) (dual of [8388601, 8388560, 12]-code), using
- net defined by OOA [i] based on linear OOA(6441, 1677720, F64, 11, 11) (dual of [(1677720, 11), 18454879, 12]-NRT-code), using
(30, 40, large)-Net over F64 — Digital
Digital (30, 40, large)-net over F64, using
- 642 times duplication [i] based on digital (28, 38, large)-net over F64, using
- embedding of OOA with Gilbert–VarÅ¡amov bound [i] based on linear OA(6438, large, F64, 10) (dual of [large, large−38, 11]-code), using
- 1 times code embedding in larger space [i] based on linear OA(6437, large, F64, 10) (dual of [large, large−37, 11]-code), using
- the primitive expurgated narrow-sense BCH-code C(I) with length 16777215 = 644−1, defining interval I = [0,9], and designed minimum distance d ≥ |I|+1 = 11 [i]
- 1 times code embedding in larger space [i] based on linear OA(6437, large, F64, 10) (dual of [large, large−37, 11]-code), using
- embedding of OOA with Gilbert–VarÅ¡amov bound [i] based on linear OA(6438, large, F64, 10) (dual of [large, large−38, 11]-code), using
(30, 40, large)-Net in Base 64 — Upper bound on s
There is no (30, 40, large)-net in base 64, because
- 8 times m-reduction [i] would yield (30, 32, large)-net in base 64, but