Information on Result #672398
Linear OA(2146, 262164, F2, 17) (dual of [262164, 262018, 18]-code), using construction X4 applied to Ce(16) ⊂ Ce(14) based on
- linear OA(2145, 262144, F2, 17) (dual of [262144, 261999, 18]-code), using an extension Ce(16) of the primitive narrow-sense BCH-code C(I) with length 262143 = 218−1, defining interval I = [1,16], and designed minimum distance d ≥ |I|+1 = 17 [i]
- linear OA(2127, 262144, F2, 15) (dual of [262144, 262017, 16]-code), using an extension Ce(14) of the primitive narrow-sense BCH-code C(I) with length 262143 = 218−1, defining interval I = [1,14], and designed minimum distance d ≥ |I|+1 = 15 [i]
- linear OA(219, 20, F2, 19) (dual of [20, 1, 20]-code or 20-arc in PG(18,2)), using
- dual of repetition code with length 20 [i]
- linear OA(21, 20, F2, 1) (dual of [20, 19, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(21, s, F2, 1) (dual of [s, s−1, 2]-code) for arbitrarily large s, 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
The following results depend on this result:
| Result | This result only | Method | ||
|---|---|---|---|---|
| 1 | Linear OA(2146, 262164, F2, 16) (dual of [262164, 262018, 17]-code) | [i] | Strength Reduction | |
| 2 | Linear OA(2147, 262165, F2, 17) (dual of [262165, 262018, 18]-code) | [i] | Code Embedding in Larger Space | |
| 3 | Linear OA(2148, 262166, F2, 17) (dual of [262166, 262018, 18]-code) | [i] | ||
| 4 | Linear OA(2149, 262167, F2, 17) (dual of [262167, 262018, 18]-code) | [i] | ||
| 5 | Linear OA(2150, 262168, F2, 17) (dual of [262168, 262018, 18]-code) | [i] | ||
| 6 | Linear OA(2145, 262163, F2, 16) (dual of [262163, 262018, 17]-code) | [i] | Truncation | |
| 7 | Linear OOA(2146, 131082, F2, 2, 17) (dual of [(131082, 2), 262018, 18]-NRT-code) | [i] | OOA Folding | |
| 8 | Linear OOA(2146, 87388, F2, 3, 17) (dual of [(87388, 3), 262018, 18]-NRT-code) | [i] | ||
| 9 | Linear OOA(2146, 65541, F2, 4, 17) (dual of [(65541, 4), 262018, 18]-NRT-code) | [i] | ||
| 10 | Linear OOA(2146, 43694, F2, 6, 17) (dual of [(43694, 6), 262018, 18]-NRT-code) | [i] | ||
| 11 | Linear OOA(2146, 37452, F2, 7, 17) (dual of [(37452, 7), 262018, 18]-NRT-code) | [i] | ||