Linear OA(3²²³, 2320, F₃, 45) (dual of [2320, 2097, 46]-code), using 121 step VarÅ¡amov–Edel lengthening with (r_i) = (3, 1, 1, 0, 1, 0, 0, 1, 4 times 0, 1, 6 times 0, 1, 9 times 0, 1, 13 times 0, 1, 18 times 0, 1, 25 times 0, 1, 32 times 0) based on linear OA(3²¹⁰, 2186, F₃, 45) (dual of [2186, 1976, 46]-code), using

• 1 times truncation [i] based on linear OA(3²¹¹, 2187, F₃, 46) (dual of [2187, 1976, 47]-code), using
  • an extension C_e(45) of the primitive narrow-sense BCH-code C(I) with length 2186 = 3⁷−1, defining interval I = [1,45], and designed minimum distance d ≥ |I|+1 = 46 [i]