The generator matrix

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

generates a code of length 74 over Z2[X]/(X^2) who´s minimum homogenous weight is 64.

Homogenous weight enumerator: w(x)=1x^0+142x^64+358x^66+483x^68+502x^70+458x^72+446x^74+420x^76+378x^78+319x^80+238x^82+191x^84+110x^86+24x^88+14x^90+10x^92+2x^94

The gray image is a linear code over GF(2) with n=148, k=12 and d=64.
This code was found by Heurico 1.16 in 2.75 seconds.