The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  4  0  2  1  1  2  1  1  1  1  1  1  1  0  1  2  1  1  0  1  1  2  1  2  1  1  2  4  2  2  2  1  2  2  1  1  2  1  2  2
 0  2  0  0  0  2  6  2  0  0  4  4  2  2  6  2  0  4  2  2  6  0  6  2  4  6  4  4  6  4  4  2  4  2  2  4  2  2  2  2  4  2  6  4  4  4  4  4  6  6  0  4  2  6  0  2  0  2  2  4  2  2  0  2  2  6  2  2  6  2  6  2  0
 0  0  2  0  2  2  6  0  0  4  2  2  2  6  4  0  0  0  6  0  4  6  2  4  6  2  2  0  6  0  2  0  6  6  4  2  4  0  6  4  4  4  0  2  4  2  4  4  4  6  0  2  0  0  6  6  6  2  0  6  0  4  6  4  2  4  2  6  0  0  0  2  0
 0  0  0  2  2  0  6  2  4  2  2  0  0  2  0  6  4  2  0  4  6  4  2  2  4  2  6  0  0  6  6  6  0  4  0  0  2  4  0  6  4  4  0  0  2  2  2  2  4  4  2  6  6  4  0  2  2  0  0  6  6  4  2  0  0  6  2  4  2  6  2  4  0
 0  0  0  0  4  0  0  0  0  0  0  4  4  4  0  0  4  0  0  0  4  4  0  4  4  0  0  4  0  4  4  0  0  4  4  0  0  4  4  4  0  4  4  0  4  0  4  0  0  4  4  4  4  0  0  0  4  4  4  0  0  0  0  0  4  4  0  0  4  0  0  4  4
 0  0  0  0  0  4  0  4  4  0  4  4  4  0  4  0  4  4  0  0  0  0  0  4  0  4  0  0  4  0  4  0  4  4  0  4  4  4  0  4  0  0  4  0  0  4  4  4  4  4  4  0  0  4  0  0  0  0  4  4  4  0  4  0  0  4  0  0  4  0  0  4  0
 0  0  0  0  0  0  4  4  0  4  4  0  4  4  4  4  4  4  4  4  4  0  0  0  4  4  0  0  4  4  0  0  0  4  0  4  0  0  0  4  4  0  4  4  0  0  4  0  4  0  4  0  4  4  4  4  4  0  0  0  0  0  4  4  4  0  0  0  4  4  0  4  0

generates a code of length 73 over Z8 who´s minimum homogenous weight is 64.

Homogenous weight enumerator: w(x)=1x^0+99x^64+4x^65+258x^66+48x^67+354x^68+132x^69+404x^70+200x^71+528x^72+244x^73+436x^74+224x^75+371x^76+124x^77+248x^78+40x^79+146x^80+8x^81+94x^82+88x^84+28x^86+10x^88+4x^90+2x^92+1x^108

The gray image is a code over GF(2) with n=292, k=12 and d=128.
This code was found by Heurico 1.16 in 1.3 seconds.