The generator matrix 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 2 1 1 2 1 2 2 2 2 1 2 1 2 2 0 8 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 0 8 0 8 8 8 0 8 8 8 0 8 0 8 0 8 8 0 0 8 8 0 0 0 8 0 0 0 0 0 0 0 0 0 0 0 0 8 0 0 0 0 0 0 0 0 0 8 8 8 8 8 8 8 0 8 8 8 8 0 0 8 0 0 8 8 8 8 8 0 0 0 8 0 0 8 0 8 0 8 8 0 8 0 0 0 8 8 8 8 0 8 8 8 8 8 8 8 8 0 0 8 0 0 0 8 0 0 0 0 0 0 0 0 0 0 0 8 0 0 0 0 8 8 8 8 8 8 8 0 0 0 8 0 0 0 8 8 8 0 8 0 8 8 0 0 8 8 0 8 0 0 0 0 8 8 0 8 0 0 0 8 8 0 0 8 8 8 0 8 8 8 0 8 8 8 0 8 8 8 8 8 0 0 0 0 8 0 0 0 0 0 0 0 0 0 8 0 0 0 8 8 8 8 8 8 0 0 0 0 8 0 8 8 8 0 8 0 0 8 0 0 8 0 8 8 8 8 0 0 8 0 0 0 8 0 0 8 8 8 8 8 0 0 8 8 8 8 8 8 8 0 8 8 0 8 0 8 8 0 8 8 0 0 0 0 0 8 0 0 0 0 0 0 0 0 8 0 8 8 8 8 8 8 0 8 8 0 8 8 8 0 0 0 8 8 8 8 8 0 8 0 0 0 8 8 0 8 8 0 0 8 8 0 8 8 8 0 8 8 8 8 8 0 0 0 8 8 0 8 0 0 8 8 0 0 0 0 8 8 8 8 0 0 0 0 0 0 8 0 0 0 0 0 0 8 0 0 8 8 0 8 8 0 8 0 8 0 8 8 8 8 0 0 8 8 0 0 0 8 8 0 8 8 0 8 8 8 0 0 0 8 0 8 8 0 8 8 8 0 0 8 0 0 0 8 8 8 8 0 8 0 0 8 0 8 0 0 0 8 8 8 0 0 0 0 0 0 0 8 0 0 0 0 0 8 0 0 0 8 8 8 8 0 8 8 0 8 0 8 0 0 8 0 0 8 8 8 0 0 0 8 0 8 8 0 0 8 8 8 0 0 0 0 0 8 8 8 0 8 0 8 8 0 0 0 8 0 0 0 0 0 8 0 8 0 0 8 0 8 8 0 0 0 0 0 0 0 0 0 8 0 0 0 8 0 0 0 0 8 8 0 8 0 0 0 8 8 8 0 0 8 0 8 8 8 8 0 0 0 0 0 8 0 8 8 8 0 0 8 0 0 8 0 8 8 8 0 0 0 0 8 8 8 8 0 8 0 0 0 8 0 8 0 0 8 8 8 0 8 8 0 0 0 0 0 0 0 0 0 0 8 0 0 8 0 0 0 8 0 0 8 0 8 0 0 8 0 0 0 0 8 8 8 0 0 8 8 0 8 8 0 0 0 0 8 8 0 0 0 8 8 8 8 8 0 0 8 8 0 8 8 8 8 0 8 0 8 0 8 0 8 0 0 0 0 8 8 8 0 8 0 0 0 0 0 0 0 0 0 0 0 8 0 8 8 8 8 8 0 0 0 8 0 0 8 8 0 0 8 0 8 8 0 0 8 8 0 8 8 0 8 0 8 8 8 0 0 0 8 0 0 0 0 8 0 8 8 0 0 8 0 0 8 0 0 8 0 0 8 8 8 0 8 0 8 0 8 0 8 8 8 0 0 0 0 0 0 0 0 0 0 0 8 8 8 8 8 0 0 8 8 8 8 8 0 8 0 8 0 0 0 0 0 8 0 8 0 0 8 0 0 8 0 0 0 8 0 0 8 8 8 8 8 0 8 8 0 8 8 0 0 8 0 0 0 0 8 0 8 8 0 0 0 0 0 0 8 0 8 8 8 generates a code of length 80 over Z16 who´s minimum homogenous weight is 64. Homogenous weight enumerator: w(x)=1x^0+183x^64+448x^68+8x^70+596x^72+168x^74+1027x^76+848x^78+26216x^80+848x^82+1056x^84+168x^86+596x^88+8x^90+380x^92+176x^96+32x^100+8x^104+1x^140 The gray image is a code over GF(2) with n=640, k=15 and d=256. This code was found by Heurico 1.16 in 45.9 seconds.