The generator matrix

 1  0  0  0  1  1  1  X  1  1  X  1  1  0  X  1  0  1  1  X  X  1  X  0  0  1  1  1  0  1  1  0  1  0  1  X  0  1  1  1  X  X  1  X  X  0  1  X  0  0  1  0  1  1  X  0  1  1  1  1  0  1  1  1  X  0  0  1  1  1  1  0  X
 0  1  0  0  0  0  0  0  1 X+1  1  1 X+1  1  1  X  X  0  1  0  1  1  1  1  0  0  X  1  1 X+1 X+1  1  X  0 X+1  X  X X+1 X+1  X  1  1  1  1  1  1  X  X  1  1  X  0  X  1  1  0  0 X+1 X+1  1  1  0  1 X+1  1  1  1  X X+1  X  1  X  X
 0  0  1  0  0  1 X+1  1  1 X+1  0  0  0  1  1  0  0  1  X  1  X  1  1 X+1  1  X X+1  0  0  1  X  0 X+1  X  1  1  1 X+1  X  0 X+1  0  1 X+1  1 X+1  1  1  1  X  X  1  0 X+1  X  0  X  X X+1  X  1  X  0  0  1  1  X  1  X  1 X+1  1  1
 0  0  0  1  1 X+1  0 X+1  0  1 X+1 X+1  0 X+1  0  1  1  1  1  1  1  X  X  1  X  0  0  0  0  1  X  X  0  1  X  X  X X+1  1  0 X+1  1  0  X  1 X+1 X+1 X+1  0 X+1 X+1  X X+1  1  X  1  0  X X+1 X+1 X+1  1 X+1  X  0  1  0  X X+1  0  X X+1  0
 0  0  0  0  X  X  X  0  X  X  0  X  X  0  0  0  X  0  0  X  X  0  X  X  X  X  0  0  X  0  0  0  X  X  X  X  0  X  X  X  X  X  0  0  0  X  0  X  X  0  X  0  X  0  X  X  0  X  0  X  X  0  0  0  X  X  X  0  X  X  0  0  X

generates a code of length 73 over Z2[X]/(X^2) who´s minimum homogenous weight is 68.

Homogenous weight enumerator: w(x)=1x^0+85x^68+142x^70+96x^72+50x^74+46x^76+28x^78+25x^80+10x^82+11x^84+4x^86+2x^88+4x^90+6x^92+2x^94

The gray image is a linear code over GF(2) with n=146, k=9 and d=68.
This code was found by Heurico 1.16 in 0.104 seconds.