Best Known (40, 40+18, s)-Nets in Base 64
(40, 40+18, 29130)-Net over F64 — Constructive and digital
Digital (40, 58, 29130)-net over F64, using
- net defined by OOA [i] based on linear OOA(6458, 29130, F64, 18, 18) (dual of [(29130, 18), 524282, 19]-NRT-code), using
- OA 9-folding and stacking [i] based on linear OA(6458, 262170, F64, 18) (dual of [262170, 262112, 19]-code), using
- discarding factors / shortening the dual code based on linear OA(6458, 262171, F64, 18) (dual of [262171, 262113, 19]-code), using
- construction X applied to Ce(17) ⊂ Ce(10) [i] based on
- linear OA(6452, 262144, F64, 18) (dual of [262144, 262092, 19]-code), using an extension Ce(17) of the primitive narrow-sense BCH-code C(I) with length 262143 = 643−1, defining interval I = [1,17], and designed minimum distance d ≥ |I|+1 = 18 [i]
- linear OA(6431, 262144, F64, 11) (dual of [262144, 262113, 12]-code), using an extension Ce(10) of the primitive narrow-sense BCH-code C(I) with length 262143 = 643−1, defining interval I = [1,10], and designed minimum distance d ≥ |I|+1 = 11 [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(17) ⊂ Ce(10) [i] based on
- discarding factors / shortening the dual code based on linear OA(6458, 262171, F64, 18) (dual of [262171, 262113, 19]-code), using
- OA 9-folding and stacking [i] based on linear OA(6458, 262170, F64, 18) (dual of [262170, 262112, 19]-code), using
(40, 40+18, 262171)-Net over F64 — Digital
Digital (40, 58, 262171)-net over F64, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OA(6458, 262171, F64, 18) (dual of [262171, 262113, 19]-code), using
- construction X applied to Ce(17) ⊂ Ce(10) [i] based on
- linear OA(6452, 262144, F64, 18) (dual of [262144, 262092, 19]-code), using an extension Ce(17) of the primitive narrow-sense BCH-code C(I) with length 262143 = 643−1, defining interval I = [1,17], and designed minimum distance d ≥ |I|+1 = 18 [i]
- linear OA(6431, 262144, F64, 11) (dual of [262144, 262113, 12]-code), using an extension Ce(10) of the primitive narrow-sense BCH-code C(I) with length 262143 = 643−1, defining interval I = [1,10], and designed minimum distance d ≥ |I|+1 = 11 [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(17) ⊂ Ce(10) [i] based on
(40, 40+18, large)-Net in Base 64 — Upper bound on s
There is no (40, 58, large)-net in base 64, because
- 16 times m-reduction [i] would yield (40, 42, large)-net in base 64, but