Best Known (44, 44+21, s)-Nets in Base 64
(44, 44+21, 26216)-Net over F64 — Constructive and digital
Digital (44, 65, 26216)-net over F64, using
- net defined by OOA [i] based on linear OOA(6465, 26216, F64, 21, 21) (dual of [(26216, 21), 550471, 22]-NRT-code), using
- OOA 10-folding and stacking with additional row [i] based on linear OA(6465, 262161, F64, 21) (dual of [262161, 262096, 22]-code), using
- discarding factors / shortening the dual code based on linear OA(6465, 262163, F64, 21) (dual of [262163, 262098, 22]-code), using
- construction X applied to Ce(20) ⊂ Ce(15) [i] based on
- linear OA(6461, 262144, F64, 21) (dual of [262144, 262083, 22]-code), using an extension Ce(20) of the primitive narrow-sense BCH-code C(I) with length 262143 = 643−1, defining interval I = [1,20], and designed minimum distance d ≥ |I|+1 = 21 [i]
- linear OA(6446, 262144, F64, 16) (dual of [262144, 262098, 17]-code), using an extension Ce(15) of the primitive narrow-sense BCH-code C(I) with length 262143 = 643−1, defining interval I = [1,15], and designed minimum distance d ≥ |I|+1 = 16 [i]
- linear OA(644, 19, F64, 4) (dual of [19, 15, 5]-code or 19-arc in PG(3,64)), using
- discarding factors / shortening the dual code based on linear OA(644, 64, F64, 4) (dual of [64, 60, 5]-code or 64-arc in PG(3,64)), using
- Reed–Solomon code RS(60,64) [i]
- discarding factors / shortening the dual code based on linear OA(644, 64, F64, 4) (dual of [64, 60, 5]-code or 64-arc in PG(3,64)), using
- construction X applied to Ce(20) ⊂ Ce(15) [i] based on
- discarding factors / shortening the dual code based on linear OA(6465, 262163, F64, 21) (dual of [262163, 262098, 22]-code), using
- OOA 10-folding and stacking with additional row [i] based on linear OA(6465, 262161, F64, 21) (dual of [262161, 262096, 22]-code), using
(44, 44+21, 152695)-Net over F64 — Digital
Digital (44, 65, 152695)-net over F64, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OA(6465, 152695, F64, 21) (dual of [152695, 152630, 22]-code), using
- discarding factors / shortening the dual code based on linear OA(6465, 262163, F64, 21) (dual of [262163, 262098, 22]-code), using
- construction X applied to Ce(20) ⊂ Ce(15) [i] based on
- linear OA(6461, 262144, F64, 21) (dual of [262144, 262083, 22]-code), using an extension Ce(20) of the primitive narrow-sense BCH-code C(I) with length 262143 = 643−1, defining interval I = [1,20], and designed minimum distance d ≥ |I|+1 = 21 [i]
- linear OA(6446, 262144, F64, 16) (dual of [262144, 262098, 17]-code), using an extension Ce(15) of the primitive narrow-sense BCH-code C(I) with length 262143 = 643−1, defining interval I = [1,15], and designed minimum distance d ≥ |I|+1 = 16 [i]
- linear OA(644, 19, F64, 4) (dual of [19, 15, 5]-code or 19-arc in PG(3,64)), using
- discarding factors / shortening the dual code based on linear OA(644, 64, F64, 4) (dual of [64, 60, 5]-code or 64-arc in PG(3,64)), using
- Reed–Solomon code RS(60,64) [i]
- discarding factors / shortening the dual code based on linear OA(644, 64, F64, 4) (dual of [64, 60, 5]-code or 64-arc in PG(3,64)), using
- construction X applied to Ce(20) ⊂ Ce(15) [i] based on
- discarding factors / shortening the dual code based on linear OA(6465, 262163, F64, 21) (dual of [262163, 262098, 22]-code), using
(44, 44+21, large)-Net in Base 64 — Upper bound on s
There is no (44, 65, large)-net in base 64, because
- 19 times m-reduction [i] would yield (44, 46, large)-net in base 64, but