Best Known (55−17, 55, s)-Nets in Base 64
(55−17, 55, 32771)-Net over F64 — Constructive and digital
Digital (38, 55, 32771)-net over F64, using
- net defined by OOA [i] based on linear OOA(6455, 32771, F64, 17, 17) (dual of [(32771, 17), 557052, 18]-NRT-code), using
- OOA 8-folding and stacking with additional row [i] based on linear OA(6455, 262169, F64, 17) (dual of [262169, 262114, 18]-code), using
- discarding factors / shortening the dual code based on linear OA(6455, 262171, F64, 17) (dual of [262171, 262116, 18]-code), using
- construction X applied to Ce(16) ⊂ Ce(9) [i] based on
- linear OA(6449, 262144, F64, 17) (dual of [262144, 262095, 18]-code), using an extension Ce(16) of the primitive narrow-sense BCH-code C(I) with length 262143 = 643−1, defining interval I = [1,16], and designed minimum distance d ≥ |I|+1 = 17 [i]
- linear OA(6428, 262144, F64, 10) (dual of [262144, 262116, 11]-code), using an extension Ce(9) of the primitive narrow-sense BCH-code C(I) with length 262143 = 643−1, defining interval I = [1,9], and designed minimum distance d ≥ |I|+1 = 10 [i]
- linear OA(646, 27, F64, 6) (dual of [27, 21, 7]-code or 27-arc in PG(5,64)), using
- discarding factors / shortening the dual code based on linear OA(646, 64, F64, 6) (dual of [64, 58, 7]-code or 64-arc in PG(5,64)), using
- Reed–Solomon code RS(58,64) [i]
- discarding factors / shortening the dual code based on linear OA(646, 64, F64, 6) (dual of [64, 58, 7]-code or 64-arc in PG(5,64)), using
- construction X applied to Ce(16) ⊂ Ce(9) [i] based on
- discarding factors / shortening the dual code based on linear OA(6455, 262171, F64, 17) (dual of [262171, 262116, 18]-code), using
- OOA 8-folding and stacking with additional row [i] based on linear OA(6455, 262169, F64, 17) (dual of [262169, 262114, 18]-code), using
(55−17, 55, 262171)-Net over F64 — Digital
Digital (38, 55, 262171)-net over F64, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OA(6455, 262171, F64, 17) (dual of [262171, 262116, 18]-code), using
- construction X applied to Ce(16) ⊂ Ce(9) [i] based on
- linear OA(6449, 262144, F64, 17) (dual of [262144, 262095, 18]-code), using an extension Ce(16) of the primitive narrow-sense BCH-code C(I) with length 262143 = 643−1, defining interval I = [1,16], and designed minimum distance d ≥ |I|+1 = 17 [i]
- linear OA(6428, 262144, F64, 10) (dual of [262144, 262116, 11]-code), using an extension Ce(9) of the primitive narrow-sense BCH-code C(I) with length 262143 = 643−1, defining interval I = [1,9], and designed minimum distance d ≥ |I|+1 = 10 [i]
- linear OA(646, 27, F64, 6) (dual of [27, 21, 7]-code or 27-arc in PG(5,64)), using
- discarding factors / shortening the dual code based on linear OA(646, 64, F64, 6) (dual of [64, 58, 7]-code or 64-arc in PG(5,64)), using
- Reed–Solomon code RS(58,64) [i]
- discarding factors / shortening the dual code based on linear OA(646, 64, F64, 6) (dual of [64, 58, 7]-code or 64-arc in PG(5,64)), using
- construction X applied to Ce(16) ⊂ Ce(9) [i] based on
(55−17, 55, large)-Net in Base 64 — Upper bound on s
There is no (38, 55, large)-net in base 64, because
- 15 times m-reduction [i] would yield (38, 40, large)-net in base 64, but