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 2 2 1 1 2 1 2 1 1 1 1 2 1 2 4 1 1 1 1 1 1 0 4 1 0 1 1 4 1 2 1 1 1 0 2 1 4 1 2 0 2 8 4 8 1 8 2 2 0 12 0 12 0 12 0 12 0 4 8 12 0 12 4 8 12 0 8 0 4 4 8 12 0 8 0 8 12 12 4 4 12 12 0 0 12 12 4 12 4 4 12 12 12 12 12 0 12 12 4 0 8 4 12 0 4 8 12 12 8 12 0 4 8 4 12 12 12 0 12 4 12 0 12 8 8 8 8 0 0 0 8 0 0 0 0 0 0 0 8 0 8 0 0 8 8 0 8 8 8 8 0 8 0 8 8 0 0 8 8 0 0 0 0 0 0 8 0 0 8 8 8 8 8 0 0 8 0 8 8 8 0 0 0 8 8 0 0 8 8 0 0 8 0 8 8 0 8 8 8 8 0 0 8 0 8 8 8 0 0 0 0 8 0 0 0 0 0 8 0 0 0 8 8 0 8 8 8 8 0 8 8 0 0 8 8 0 0 8 8 0 0 8 0 0 0 0 8 8 8 8 0 0 0 8 0 8 0 0 0 0 8 8 8 0 8 8 0 8 8 0 8 8 8 8 8 0 8 8 0 8 8 8 0 0 8 8 0 0 0 0 0 0 8 0 0 0 0 0 0 0 8 0 0 0 0 8 0 8 0 0 0 0 8 8 8 8 0 0 0 0 0 0 0 0 8 8 8 8 0 8 8 0 8 8 8 0 8 8 0 8 0 8 8 8 8 0 8 0 0 0 0 8 8 0 8 8 8 0 8 0 8 0 8 0 8 8 8 0 0 0 0 0 0 8 0 0 0 0 0 8 0 0 8 0 8 0 0 0 8 8 0 0 8 8 8 8 0 8 0 8 0 8 0 8 8 0 0 8 0 8 0 8 0 0 8 8 0 8 8 0 8 8 0 8 8 8 8 8 8 8 0 0 8 8 8 8 8 8 8 0 0 0 0 0 0 8 8 0 0 0 0 0 0 0 8 0 0 0 0 0 8 0 0 8 8 8 8 0 8 8 8 8 0 0 8 8 8 0 0 8 0 8 8 0 0 0 8 0 0 8 0 8 8 0 8 0 0 0 8 0 0 0 8 8 8 0 0 0 0 8 8 0 8 8 0 8 8 8 0 8 0 8 0 0 8 8 0 0 0 0 0 0 0 0 0 8 0 8 0 8 0 0 8 0 0 8 8 8 8 0 8 8 0 8 8 0 0 8 8 0 0 8 8 8 8 8 0 0 8 8 0 8 8 0 8 0 0 0 0 0 0 8 8 8 0 0 8 8 8 8 0 0 0 8 0 0 0 8 0 0 8 8 8 8 0 0 0 8 0 0 0 0 0 0 0 0 8 0 8 8 8 8 0 8 0 0 0 8 8 8 8 0 8 0 0 8 8 0 0 8 0 0 0 0 0 8 0 0 8 8 8 8 8 0 0 8 8 0 0 0 8 8 8 8 0 0 8 0 8 8 0 0 8 8 8 8 8 0 8 0 0 8 8 8 8 0 8 8 generates a code of length 80 over Z16 who´s minimum homogenous weight is 69. Homogenous weight enumerator: w(x)=1x^0+28x^69+66x^70+76x^71+145x^72+146x^73+210x^74+304x^75+413x^76+610x^77+772x^78+880x^79+946x^80+876x^81+735x^82+632x^83+430x^84+312x^85+210x^86+132x^87+77x^88+66x^89+25x^90+24x^91+18x^92+10x^93+20x^94+12x^96+5x^98+2x^100+4x^102+2x^104+1x^106+1x^108+1x^112 The gray image is a code over GF(2) with n=640, k=13 and d=276. This code was found by Heurico 1.16 in 22.5 seconds.