Best Known (67, 67+23, s)-Nets in Base 27
(67, 67+23, 48313)-Net over F27 — Constructive and digital
Digital (67, 90, 48313)-net over F27, using
- 271 times duplication [i] based on digital (66, 89, 48313)-net over F27, using
- net defined by OOA [i] based on linear OOA(2789, 48313, F27, 23, 23) (dual of [(48313, 23), 1111110, 24]-NRT-code), using
- OOA 11-folding and stacking with additional row [i] based on linear OA(2789, 531444, F27, 23) (dual of [531444, 531355, 24]-code), using
- discarding factors / shortening the dual code based on linear OA(2789, 531445, F27, 23) (dual of [531445, 531356, 24]-code), using
- construction X applied to Ce(22) ⊂ Ce(21) [i] based on
- linear OA(2789, 531441, F27, 23) (dual of [531441, 531352, 24]-code), using an extension Ce(22) of the primitive narrow-sense BCH-code C(I) with length 531440 = 274−1, defining interval I = [1,22], and designed minimum distance d ≥ |I|+1 = 23 [i]
- linear OA(2785, 531441, F27, 22) (dual of [531441, 531356, 23]-code), using an extension Ce(21) of the primitive narrow-sense BCH-code C(I) with length 531440 = 274−1, defining interval I = [1,21], and designed minimum distance d ≥ |I|+1 = 22 [i]
- linear OA(270, 4, F27, 0) (dual of [4, 4, 1]-code), using
- discarding factors / shortening the dual code based on linear OA(270, s, F27, 0) (dual of [s, s, 1]-code) with arbitrarily large s, using
- construction X applied to Ce(22) ⊂ Ce(21) [i] based on
- discarding factors / shortening the dual code based on linear OA(2789, 531445, F27, 23) (dual of [531445, 531356, 24]-code), using
- OOA 11-folding and stacking with additional row [i] based on linear OA(2789, 531444, F27, 23) (dual of [531444, 531355, 24]-code), using
- net defined by OOA [i] based on linear OOA(2789, 48313, F27, 23, 23) (dual of [(48313, 23), 1111110, 24]-NRT-code), using
(67, 67+23, 388833)-Net over F27 — Digital
Digital (67, 90, 388833)-net over F27, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OA(2790, 388833, F27, 23) (dual of [388833, 388743, 24]-code), using
- discarding factors / shortening the dual code based on linear OA(2790, 531451, F27, 23) (dual of [531451, 531361, 24]-code), using
- construction X applied to C([0,11]) ⊂ C([0,10]) [i] based on
- linear OA(2789, 531442, F27, 23) (dual of [531442, 531353, 24]-code), using the expurgated narrow-sense BCH-code C(I) with length 531442 | 278−1, defining interval I = [0,11], and minimum distance d ≥ |{−11,−10,…,11}|+1 = 24 (BCH-bound) [i]
- linear OA(2781, 531442, F27, 21) (dual of [531442, 531361, 22]-code), using the expurgated narrow-sense BCH-code C(I) with length 531442 | 278−1, defining interval I = [0,10], and minimum distance d ≥ |{−10,−9,…,10}|+1 = 22 (BCH-bound) [i]
- linear OA(271, 9, F27, 1) (dual of [9, 8, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(271, s, F27, 1) (dual of [s, s−1, 2]-code) with arbitrarily large s, using
- construction X applied to C([0,11]) ⊂ C([0,10]) [i] based on
- discarding factors / shortening the dual code based on linear OA(2790, 531451, F27, 23) (dual of [531451, 531361, 24]-code), using
(67, 67+23, large)-Net in Base 27 — Upper bound on s
There is no (67, 90, large)-net in base 27, because
- 21 times m-reduction [i] would yield (67, 69, large)-net in base 27, but