The generator matrix

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

generates a code of length 64 over Z8 who´s minimum homogenous weight is 55.

Homogenous weight enumerator: w(x)=1x^0+160x^55+573x^56+976x^57+1361x^58+1604x^59+1980x^60+2378x^61+2929x^62+2828x^63+3274x^64+2808x^65+2907x^66+2492x^67+2134x^68+1598x^69+1070x^70+744x^71+484x^72+216x^73+142x^74+52x^75+28x^76+4x^77+7x^78+4x^79+6x^80+4x^81+4x^83

The gray image is a code over GF(2) with n=256, k=15 and d=110.
This code was found by Heurico 1.11 in 14.4 seconds.