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 2 0 1 1 1 1 2 12 1 2 8 1 2 1 1 0 2 1 1 1 1 2 1 2 12 1 1 1 1 1 1 0 12 1 2 1 1 4 2 4 0 1 2 4 1 8 12 1 1 1 1 1 1 1 4 2 1 0 2 0 6 4 14 12 2 0 6 14 12 2 8 4 10 12 2 6 4 0 14 10 6 2 0 6 10 4 10 2 8 14 2 8 2 4 6 2 6 4 2 8 10 10 0 6 2 4 8 10 6 10 4 2 2 8 8 2 10 8 14 2 2 8 0 8 12 4 2 6 8 6 12 14 10 2 4 14 0 0 0 12 0 4 4 0 4 0 0 4 8 12 4 4 0 8 4 12 4 8 12 0 0 0 0 0 8 4 0 8 4 12 12 8 4 8 12 0 0 0 4 4 8 8 8 0 8 12 8 4 0 8 12 8 8 12 12 4 8 4 12 4 8 0 4 4 12 4 8 8 12 4 8 12 0 8 12 12 0 0 0 0 8 0 0 0 0 0 0 0 0 8 0 8 8 0 8 8 8 0 8 0 8 0 8 0 8 0 0 8 8 8 0 8 8 0 0 8 0 8 0 0 0 0 8 0 0 8 8 0 8 0 8 0 8 0 8 0 8 0 8 0 8 8 0 0 8 0 0 8 8 8 0 8 8 8 8 8 0 0 0 0 0 8 0 0 0 0 8 8 8 8 0 8 8 0 0 8 8 8 0 8 0 0 8 0 8 8 8 8 0 0 8 8 8 8 8 8 8 8 8 0 8 0 8 8 8 0 8 0 8 8 8 8 8 0 0 0 0 8 0 0 8 8 8 0 0 8 0 8 0 8 8 8 8 0 0 8 0 0 0 0 0 0 8 0 0 0 0 8 0 0 0 0 0 0 0 8 0 0 8 0 0 0 0 8 8 8 8 8 8 8 8 8 0 0 0 8 8 8 0 0 8 0 8 8 8 0 0 8 8 0 8 0 0 8 8 0 8 8 8 8 8 0 8 0 0 8 8 0 0 0 8 0 8 0 8 0 0 0 0 0 0 0 0 8 0 0 0 0 8 0 0 0 8 8 8 8 8 0 8 8 0 8 0 8 8 0 8 0 0 0 0 0 0 0 8 8 8 0 8 0 8 8 8 8 0 0 0 8 0 8 8 8 8 8 8 0 0 8 8 0 0 8 0 8 8 0 8 8 8 8 0 8 0 0 0 0 0 0 0 0 0 0 0 0 8 0 0 0 0 8 0 0 0 0 8 0 0 0 0 0 8 8 0 8 8 8 0 0 8 8 8 8 0 0 8 8 8 8 0 8 0 8 0 8 8 8 8 8 0 0 0 8 8 0 8 0 0 0 8 0 8 0 0 8 0 8 0 0 8 8 0 0 0 8 8 0 0 0 0 0 0 0 0 0 0 8 0 0 0 0 8 8 8 8 8 8 0 8 8 8 8 8 0 0 0 8 8 0 0 8 0 0 8 0 0 8 0 8 0 8 8 0 0 8 8 0 0 8 0 0 8 0 8 0 0 0 8 0 8 0 8 0 8 8 8 0 8 0 8 0 8 8 8 8 0 8 0 generates a code of length 80 over Z16 who´s minimum homogenous weight is 68. Homogenous weight enumerator: w(x)=1x^0+55x^68+56x^69+136x^70+214x^71+390x^72+490x^73+929x^74+946x^75+2231x^76+1910x^77+3984x^78+2636x^79+5004x^80+2482x^81+4165x^82+1820x^83+2219x^84+996x^85+814x^86+438x^87+260x^88+174x^89+157x^90+82x^91+65x^92+30x^93+38x^94+8x^95+7x^96+6x^97+11x^98+6x^100+2x^102+2x^104+2x^106+2x^110 The gray image is a code over GF(2) with n=640, k=15 and d=272. This code was found by Heurico 1.16 in 30.1 seconds.