Information on Result #619886

Linear OA(25663, 278, F256, 43) (dual of [278, 215, 44]-code), using construction X applied to C([0,21]) ⊂ C([1,21]) based on
  1. linear OA(25643, 257, F256, 43) (dual of [257, 214, 44]-code or 257-arc in PG(42,256)), using the expurgated narrow-sense BCH-code C(I) with length 257 | 2562−1, defining interval I = [0,21], and minimum distance d ≥ |{−21,−20,…,21}|+1 = 44 (BCH-bound) [i]
  2. linear OA(25642, 257, F256, 22) (dual of [257, 215, 23]-code), using the narrow-sense BCH-code C(I) with length 257 | 2562−1, defining interval I = [1,21], and minimum distance d ≥ |{−21,−19,−17,…,21}|+1 = 23 (BCH-bound) [i]
  3. linear OA(25620, 21, F256, 20) (dual of [21, 1, 21]-code or 21-arc in PG(19,256)), using

Mode: Constructive and linear.

Optimality

Show details for fixed k and m, n and k, k and s, k and t, n and m, m and s, m and t, n and s, n and t.

Other Results with Identical Parameters

None.

Depending Results

None.