The generator matrix

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

generates a code of length 64 over Z8 who´s minimum homogenous weight is 53.

Homogenous weight enumerator: w(x)=1x^0+110x^53+652x^54+1282x^55+2136x^56+2992x^57+4580x^58+5942x^59+7601x^60+9840x^61+11285x^62+12312x^63+12664x^64+12680x^65+11625x^66+10256x^67+8273x^68+6116x^69+4099x^70+2820x^71+1801x^72+862x^73+611x^74+272x^75+146x^76+38x^77+40x^78+10x^79+18x^80+2x^81+4x^82+2x^83

The gray image is a code over GF(2) with n=256, k=17 and d=106.
This code was found by Heurico 1.11 in 218 seconds.