Linear OA(3²⁵⁰, 2395, F₃, 51) (dual of [2395, 2145, 52]-code), using 197 step VarÅ¡amov–Edel lengthening with (r_i) = (2, 1, 1, 0, 1, 0, 0, 0, 1, 6 times 0, 1, 11 times 0, 1, 18 times 0, 1, 26 times 0, 1, 34 times 0, 1, 41 times 0, 1, 46 times 0) based on linear OA(3²³⁸, 2186, F₃, 51) (dual of [2186, 1948, 52]-code), using

• 1 times truncation [i] based on linear OA(3²³⁹, 2187, F₃, 52) (dual of [2187, 1948, 53]-code), using
  • an extension C_e(51) of the primitive narrow-sense BCH-code C(I) with length 2186 = 3⁷−1, defining interval I = [1,51], and designed minimum distance d ≥ |I|+1 = 52 [i]