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 X 1 X X X X 1 X X X X 0 X X 1 1 1 1 X 1 1 1 1 0 X 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 X X X X X X X X X X 0 X X 0 X X X 0 X X X X X 0 X 0 0 X 0 0 X 0 X X 0 0 0 0 X X 0 X X 0 0 0 0 X 0 0 0 0 0 0 0 0 0 0 0 0 X 0 0 0 0 0 0 0 0 0 X X X X X X X 0 0 0 0 X 0 0 X X 0 X X X 0 X X X 0 0 0 0 0 X 0 X X X 0 0 X 0 0 X X 0 0 0 X X X X 0 X 0 0 0 0 0 X 0 0 0 0 0 0 0 0 0 0 0 X 0 0 0 0 X X X X X X X 0 0 0 X 0 X X X 0 X X 0 0 0 0 0 0 0 0 X X 0 X X 0 X 0 X 0 X 0 0 X 0 X 0 X X 0 X X 0 X X 0 0 X X 0 0 0 0 0 0 X 0 0 0 0 0 0 0 0 0 X 0 0 0 X X X X X X 0 0 0 0 X 0 X X 0 0 X 0 X X X X 0 0 0 X X X X X 0 0 X X 0 0 0 0 0 0 X X X 0 0 X X 0 0 0 0 0 X X X 0 X 0 0 0 0 0 0 0 X 0 0 0 0 0 0 0 0 X 0 X X X X X X 0 X X 0 X X X 0 0 0 X X X X X 0 X X 0 X X 0 X 0 X 0 X 0 0 X 0 X X 0 0 X 0 X 0 0 0 X 0 0 X 0 X 0 X X X X X 0 0 0 0 0 0 0 0 X 0 0 0 0 0 0 X 0 0 X X 0 X X 0 X 0 X 0 X X X X 0 0 0 X 0 X 0 0 X 0 X 0 0 X 0 X X 0 X X 0 0 0 X 0 0 X X 0 X 0 0 X X X X 0 X 0 X X X X 0 0 0 0 0 0 0 0 0 0 0 X 0 0 0 0 0 X 0 0 0 X X X X 0 X X 0 X 0 X 0 0 X 0 0 0 0 X X 0 X 0 X X X X 0 0 X X X 0 0 X X 0 0 X 0 0 X 0 0 0 X X 0 0 0 X X 0 0 0 X X X 0 0 0 0 0 0 0 0 0 0 X 0 0 0 X 0 0 0 0 X X 0 X 0 0 0 X X X 0 0 X 0 X X 0 X X X 0 0 X X X 0 X 0 0 0 0 0 X X 0 X 0 0 0 X 0 0 X X 0 X X 0 0 0 0 X X 0 0 X 0 X 0 0 0 0 0 0 0 0 0 0 0 X 0 0 X 0 0 0 X 0 0 X 0 X 0 0 X 0 0 0 0 X X X 0 0 X X X 0 X 0 0 X X 0 0 X 0 0 X X X 0 X 0 X X 0 0 0 X 0 X 0 X 0 X 0 X 0 X X X X X 0 0 0 0 0 0 0 0 0 0 0 0 0 X 0 X X X X X 0 0 0 X 0 0 X X 0 0 X 0 X X 0 0 X X 0 X 0 X X 0 X X X 0 X X X 0 X 0 0 0 0 0 0 0 X 0 0 0 X X 0 0 0 X X 0 X 0 0 X X 0 X X 0 0 0 0 0 0 0 0 0 0 0 X X X X X 0 0 X X X X X 0 X 0 X 0 0 0 0 0 X X X X 0 X 0 X 0 X 0 0 X X X 0 X 0 X 0 0 0 0 0 X X X 0 0 0 X X 0 0 0 X X X X 0 0 0 X 0 0 generates a code of length 77 over Z2[X]/(X^2) who´s minimum homogenous weight is 60. Homogenous weight enumerator: w(x)=1x^0+144x^60+371x^64+6x^66+562x^68+146x^70+917x^72+636x^74+1462x^76+868x^78+1262x^80+350x^82+700x^84+42x^86+412x^88+214x^92+73x^96+22x^100+3x^104+1x^128 The gray image is a linear code over GF(2) with n=154, k=13 and d=60. This code was found by Heurico 1.16 in 37.6 seconds.