The generator matrix

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

generates a code of length 74 over Z2[X]/(X^2) who´s minimum homogenous weight is 68.

Homogenous weight enumerator: w(x)=1x^0+63x^68+99x^70+108x^72+62x^74+59x^76+36x^78+31x^80+17x^82+14x^84+7x^86+7x^88+4x^92+2x^94+1x^96+1x^98

The gray image is a linear code over GF(2) with n=148, k=9 and d=68.
This code was found by Heurico 1.16 in 0.111 seconds.