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 2 2 2 1 1 1 2 1 1 1 1 1 2 2 1 1 2 1 1 1 1 1 2 2 1 4 1 2 1 2 1 4 1 1 4 1 2 1 2 1 1 0 8 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 8 8 8 0 0 0 8 8 8 0 8 8 0 0 8 0 0 8 8 0 0 0 0 8 8 8 8 8 0 0 0 8 0 0 8 8 0 0 8 8 0 0 0 8 8 0 8 0 8 0 8 8 8 0 0 8 8 0 8 0 0 0 0 8 0 0 0 0 0 0 0 0 0 8 0 0 8 8 8 8 8 8 0 0 0 0 0 0 0 0 8 0 8 8 8 8 8 8 8 0 8 8 0 8 0 0 0 8 8 8 0 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 0 8 8 8 0 8 8 0 8 0 0 0 0 8 0 0 0 0 0 0 0 0 8 8 8 8 8 0 8 8 8 8 0 0 8 8 8 8 8 8 0 8 0 8 8 0 8 0 0 8 0 0 0 0 8 0 0 8 0 8 8 0 0 8 0 0 0 0 0 8 8 0 0 8 8 8 8 8 8 0 0 8 0 8 0 0 0 0 0 0 0 0 0 0 8 0 0 0 0 0 0 8 0 8 8 0 8 8 8 0 8 0 8 0 8 0 0 8 0 8 0 0 0 0 0 8 8 0 0 0 8 8 8 0 8 8 8 8 0 0 0 8 8 0 8 8 0 0 0 8 8 0 8 8 0 0 8 0 8 8 8 8 0 0 0 8 8 0 8 8 0 0 0 0 0 8 0 0 0 0 0 8 0 0 8 8 8 8 8 0 0 8 8 0 0 0 8 0 0 0 8 8 0 8 8 0 8 8 8 8 8 0 8 8 8 0 0 0 0 0 0 0 8 8 0 0 8 8 0 8 0 8 0 8 0 0 8 0 8 8 0 0 0 0 0 8 8 8 0 8 0 0 0 0 0 0 8 0 0 0 8 0 0 0 8 8 0 0 8 0 0 8 8 0 8 8 8 0 8 8 8 0 0 0 0 8 8 0 8 8 8 8 0 0 0 8 8 0 8 0 0 8 8 8 8 8 8 0 8 8 0 0 0 0 8 0 8 0 0 0 0 8 0 8 0 0 0 0 0 0 0 0 0 0 0 0 0 8 0 0 8 0 0 8 0 0 8 0 0 8 0 8 8 8 0 8 0 8 8 8 0 8 8 0 8 0 0 8 0 8 8 8 8 0 8 0 8 8 0 8 8 8 0 0 8 0 8 8 0 8 8 0 0 0 0 0 8 0 8 8 0 8 8 8 0 0 8 8 8 0 0 0 0 0 0 0 0 0 8 0 8 8 8 8 0 0 0 0 8 0 0 0 0 8 8 0 0 8 8 0 8 0 8 0 0 8 0 0 8 8 0 8 8 0 0 8 8 8 8 0 8 8 0 0 0 0 8 0 0 0 0 8 8 8 8 8 8 0 8 8 0 8 0 0 8 8 8 8 0 8 0 0 0 0 0 0 0 0 0 8 8 8 8 0 0 8 8 8 8 8 0 8 8 8 8 0 8 0 8 8 8 0 8 0 8 0 8 0 0 8 0 0 8 0 8 8 0 8 0 0 0 8 0 8 8 8 0 8 0 8 8 0 8 8 0 0 0 0 0 0 8 8 0 8 8 0 8 8 0 0 generates a code of length 80 over Z16 who´s minimum homogenous weight is 68. Homogenous weight enumerator: w(x)=1x^0+108x^68+6x^70+230x^72+78x^74+297x^76+256x^77+164x^78+768x^79+4441x^80+768x^81+196x^82+256x^83+264x^84+54x^86+137x^88+14x^90+86x^92+49x^96+12x^100+5x^104+1x^108+1x^128 The gray image is a code over GF(2) with n=640, k=13 and d=272. This code was found by Heurico 1.16 in 3.27 seconds.