The generator matrix

 1  0  0  0  0  1  1  1  2  1  1  1  2  1  2  6  0  4  1  1  1  0  6  1  1  2  0  1  1  1  4  6  1  1  1  4  1  2  0  1  4  1  1  4  4  0  1  4  1  6  0  0  1  1  1  6  2  1  1  2  1  1  1  6  1  2  4  4  1  0  1  1  1
 0  1  0  0  0  0  0  0  0  4  4  4  0  0  0  0  4  4  4  4  4  1  1  7  3  1  1  7  1  7  1  1  3  3  2  6  6  2  1  7  1  2  6  1  1  1  6  1  7  0  1  6  7  1  2  2  1  6  3  2  5  5  2  1  2  1  2  1  1  1  2  3  1
 0  0  1  0  0  4  1  5  1  2  6  1  2  7  1  1  6  1  0  3  4  1  7  3  2  5  1  2  3  5  4  2  4  0  3  0  1  0  4  6  3  2  5  5  4  6  4  3  3  1  6  1  4  0  3  1  5  1  5  2  1  2  6  1  7  6  1  7  5  0  4  3  6
 0  0  0  1  0  5  1  4  5  0  5  3  1  4  3  4  6  3  7  2  1  3  1  4  4  2  4  2  6  7  7  4  7  6  1  1  5  1  7  3  2  3  0  7  2  1  2  7  3  2  3  3  5  2  4  7  1  0  2  1  5  6  2  0  7  3  6  4  2  4  3  2  3
 0  0  0  0  1  1  4  5  5  3  6  7  3  6  4  7  1  5  2  5  3  6  1  3  1  3  0  2  0  0  2  1  2  1  0  7  1  0  1  5  2  3  0  7  4  3  0  4  6  7  7  4  5  5  6  3  6  6  1  0  7  6  0  4  2  2  2  5  1  1  5  4  6

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

Homogenous weight enumerator: w(x)=1x^0+354x^64+664x^65+1140x^66+1372x^67+1850x^68+1844x^69+2470x^70+2456x^71+3013x^72+2696x^73+2844x^74+2584x^75+2567x^76+1840x^77+1666x^78+1208x^79+974x^80+512x^81+388x^82+124x^83+87x^84+60x^85+28x^86+18x^88+8x^90

The gray image is a code over GF(2) with n=292, k=15 and d=128.
This code was found by Heurico 1.16 in 45.5 seconds.