Best Known (66−16, 66, s)-Nets in Base 64
(66−16, 66, 1048575)-Net over F64 — Constructive and digital
Digital (50, 66, 1048575)-net over F64, using
- 641 times duplication [i] based on digital (49, 65, 1048575)-net over F64, using
- t-expansion [i] based on digital (48, 65, 1048575)-net over F64, using
- net defined by OOA [i] based on linear OOA(6465, 1048575, F64, 17, 17) (dual of [(1048575, 17), 17825710, 18]-NRT-code), using
- OOA 8-folding and stacking with additional row [i] based on linear OA(6465, 8388601, F64, 17) (dual of [8388601, 8388536, 18]-code), using
- discarding factors / shortening the dual code based on linear OA(6465, large, F64, 17) (dual of [large, large−65, 18]-code), using
- the expurgated narrow-sense BCH-code C(I) with length 16777217 | 648−1, defining interval I = [0,8], and minimum distance d ≥ |{−8,−7,…,8}|+1 = 18 (BCH-bound) [i]
- discarding factors / shortening the dual code based on linear OA(6465, large, F64, 17) (dual of [large, large−65, 18]-code), using
- OOA 8-folding and stacking with additional row [i] based on linear OA(6465, 8388601, F64, 17) (dual of [8388601, 8388536, 18]-code), using
- net defined by OOA [i] based on linear OOA(6465, 1048575, F64, 17, 17) (dual of [(1048575, 17), 17825710, 18]-NRT-code), using
- t-expansion [i] based on digital (48, 65, 1048575)-net over F64, using
(66−16, 66, large)-Net over F64 — Digital
Digital (50, 66, large)-net over F64, using
- 1 times m-reduction [i] based on digital (50, 67, large)-net over F64, using
- embedding of OOA with Gilbert–VarÅ¡amov bound [i] based on linear OA(6467, large, F64, 17) (dual of [large, large−67, 18]-code), using
- 2 times code embedding in larger space [i] based on linear OA(6465, large, F64, 17) (dual of [large, large−65, 18]-code), using
- the expurgated narrow-sense BCH-code C(I) with length 16777217 | 648−1, defining interval I = [0,8], and minimum distance d ≥ |{−8,−7,…,8}|+1 = 18 (BCH-bound) [i]
- 2 times code embedding in larger space [i] based on linear OA(6465, large, F64, 17) (dual of [large, large−65, 18]-code), using
- embedding of OOA with Gilbert–VarÅ¡amov bound [i] based on linear OA(6467, large, F64, 17) (dual of [large, large−67, 18]-code), using
(66−16, 66, large)-Net in Base 64 — Upper bound on s
There is no (50, 66, large)-net in base 64, because
- 14 times m-reduction [i] would yield (50, 52, large)-net in base 64, but