Best Known (49, 57, s)-Nets in Base 3
(49, 57, 44290)-Net over F3 — Constructive and digital
Digital (49, 57, 44290)-net over F3, using
- net defined by OOA [i] based on linear OOA(357, 44290, F3, 8, 8) (dual of [(44290, 8), 354263, 9]-NRT-code), using
- OA 4-folding and stacking [i] based on linear OA(357, 177160, F3, 8) (dual of [177160, 177103, 9]-code), using
- construction X4 applied to Ce(7) ⊂ Ce(6) [i] based on
- linear OA(356, 177147, F3, 8) (dual of [177147, 177091, 9]-code), using an extension Ce(7) of the primitive narrow-sense BCH-code C(I) with length 177146 = 311−1, defining interval I = [1,7], and designed minimum distance d ≥ |I|+1 = 8 [i]
- linear OA(345, 177147, F3, 7) (dual of [177147, 177102, 8]-code), using an extension Ce(6) of the primitive narrow-sense BCH-code C(I) with length 177146 = 311−1, defining interval I = [1,6], and designed minimum distance d ≥ |I|+1 = 7 [i]
- linear OA(312, 13, F3, 12) (dual of [13, 1, 13]-code or 13-arc in PG(11,3)), using
- dual of repetition code with length 13 [i]
- linear OA(31, 13, F3, 1) (dual of [13, 12, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(31, s, F3, 1) (dual of [s, s−1, 2]-code) with arbitrarily large s, using
- construction X4 applied to Ce(7) ⊂ Ce(6) [i] based on
- OA 4-folding and stacking [i] based on linear OA(357, 177160, F3, 8) (dual of [177160, 177103, 9]-code), using
(49, 57, 88580)-Net over F3 — Digital
Digital (49, 57, 88580)-net over F3, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OOA(357, 88580, F3, 2, 8) (dual of [(88580, 2), 177103, 9]-NRT-code), using
- OOA 2-folding [i] based on linear OA(357, 177160, F3, 8) (dual of [177160, 177103, 9]-code), using
- construction X4 applied to Ce(7) ⊂ Ce(6) [i] based on
- linear OA(356, 177147, F3, 8) (dual of [177147, 177091, 9]-code), using an extension Ce(7) of the primitive narrow-sense BCH-code C(I) with length 177146 = 311−1, defining interval I = [1,7], and designed minimum distance d ≥ |I|+1 = 8 [i]
- linear OA(345, 177147, F3, 7) (dual of [177147, 177102, 8]-code), using an extension Ce(6) of the primitive narrow-sense BCH-code C(I) with length 177146 = 311−1, defining interval I = [1,6], and designed minimum distance d ≥ |I|+1 = 7 [i]
- linear OA(312, 13, F3, 12) (dual of [13, 1, 13]-code or 13-arc in PG(11,3)), using
- dual of repetition code with length 13 [i]
- linear OA(31, 13, F3, 1) (dual of [13, 12, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(31, s, F3, 1) (dual of [s, s−1, 2]-code) with arbitrarily large s, using
- construction X4 applied to Ce(7) ⊂ Ce(6) [i] based on
- OOA 2-folding [i] based on linear OA(357, 177160, F3, 8) (dual of [177160, 177103, 9]-code), using
(49, 57, 6966272)-Net in Base 3 — Upper bound on s
There is no (49, 57, 6966273)-net in base 3, because
- the generalized Rao bound for nets shows that 3m ≥ 1570 043096 067240 068371 734609 > 357 [i]