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

generates a code of length 65 over Z8 who´s minimum homogenous weight is 56.

Homogenous weight enumerator: w(x)=1x^0+190x^56+560x^57+991x^58+1334x^59+1602x^60+2216x^61+2282x^62+2938x^63+2511x^64+3382x^65+2757x^66+3044x^67+2460x^68+2078x^69+1483x^70+1234x^71+734x^72+460x^73+272x^74+114x^75+48x^76+38x^77+23x^78+8x^79+2x^80+2x^81+2x^84+2x^88

The gray image is a code over GF(2) with n=260, k=15 and d=112.
This code was found by Heurico 1.11 in 14.6 seconds.