The generator matrix

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

generates a code of length 76 over Z2[X]/(X^2) who´s minimum homogenous weight is 72.

Homogenous weight enumerator: w(x)=1x^0+229x^72+154x^76+65x^80+26x^84+22x^88+12x^92+2x^96+1x^104

The gray image is a linear code over GF(2) with n=152, k=9 and d=72.
As d=72 is an upper bound for linear (152,9,2)-codes, this code is optimal over Z2[X]/(X^2) for dimension 9.
This code was found by Heurico 1.16 in 11.5 seconds.