The generator matrix 1 0 0 0 1 1 1 1 X^2 1 X^2+X 1 1 0 X 1 0 1 1 1 1 X^2 X 0 X 1 X 1 1 1 0 X 1 1 X X^2+X 1 X^2 X^2 X 1 1 1 1 1 X X^2 0 X^2+X 1 0 1 1 X 0 1 X X^2 X^2 1 X^2+X 1 X^2+X 1 X 1 0 1 1 1 X 0 1 0 0 X X X^2+X X+1 0 X+1 1 X^2+1 X^2+1 1 1 0 X^2+X 1 X^2 X^2+X+1 X^2+X 1 1 1 X 0 1 X+1 X+1 X^2+1 1 X 1 X^2+X+1 X^2 X X 1 X^2+X 1 X X^2 1 X^2 1 1 1 X 1 X^2+X+1 1 X^2+X+1 X^2+1 1 1 X 0 0 X^2 1 0 0 0 X^2+1 1 X^2+X+1 0 X^2+1 X+1 X+1 1 0 0 1 0 X X^2+X+1 X^2+X+1 X+1 1 X^2+X+1 X^2+1 X^2+X 0 X+1 X^2 X^2+X X^2+X X+1 X 0 X^2+1 X X+1 1 1 X^2+1 X^2+X X^2 X^2+X 1 X+1 1 1 X+1 0 1 0 X 0 1 X^2 X^2+X+1 X+1 1 0 X^2+1 1 1 X^2 X 0 1 1 X^2+X+1 X X+1 X X^2 1 0 1 X 0 X+1 X+1 X+1 X^2+X X+1 X 1 X+1 0 0 0 1 X+1 X^2+X+1 X X^2+X+1 1 X^2+X X^2+1 0 X+1 X^2+X X+1 X 1 1 X^2+X+1 X X^2+X X^2+X X^2 X^2+X+1 X^2 X^2+X+1 1 X+1 X^2 X^2+X 0 1 X^2+1 X^2 1 0 X X+1 1 X+1 X^2+1 X+1 X+1 X^2+X+1 X+1 X^2 X X+1 X+1 0 X X^2+1 0 X^2+X+1 0 0 1 1 X^2+1 X^2+X 1 0 1 0 X^2+1 X^2 1 X X^2+X+1 X^2+X X+1 0 0 0 0 X^2 X^2 X^2 X^2 0 X^2 0 X^2 X^2 0 0 X^2 0 X^2 X^2 X^2 X^2 0 0 0 0 X^2 0 X^2 X^2 X^2 X^2 X^2 0 0 X^2 X^2 0 X^2 X^2 X^2 0 0 X^2 0 0 X^2 0 X^2 X^2 0 X^2 0 0 X^2 X^2 0 X^2 X^2 X^2 X^2 X^2 0 0 X^2 X^2 X^2 0 X^2 X^2 0 0 generates a code of length 71 over Z2[X]/(X^3) who´s minimum homogenous weight is 64. Homogenous weight enumerator: w(x)=1x^0+226x^64+392x^65+628x^66+614x^67+788x^68+620x^69+780x^70+590x^71+777x^72+490x^73+575x^74+402x^75+405x^76+264x^77+281x^78+148x^79+100x^80+50x^81+37x^82+4x^83+7x^84+8x^85+3x^86+2x^87 The gray image is a linear code over GF(2) with n=284, k=13 and d=128. This code was found by Heurico 1.16 in 7.27 seconds.