Information on Result #632822

Linear OA(3215, 221, F3, 143) (dual of [221, 6, 144]-code), using concatenation of two codes based on
  1. linear OA(2715, 17, F27, 15) (dual of [17, 2, 16]-code or 17-arc in PG(14,27)), using
  2. linear OA(310, 13, F3, 8) (dual of [13, 3, 9]-code), using
    • Simplex code S(3,3) [i]
    • the expurgated narrow-sense BCH-code C(I) with length 13 | 33−1, defining interval I = [0,6], and minimum distance d ≥ |{−1,0,…,6}|+1 = 9 (BCH-bound) [i]

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.

Compare with Markus Grassl’s online database of code parameters.

Other Results with Identical Parameters

None.

Depending Results

The following results depend on this result:

ResultThis
result
only
Method
1Linear OA(3215, 221, F3, 142) (dual of [221, 6, 143]-code) [i]Strength Reduction