The generator matrix

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

generates a code of length 64 over Z8 who´s minimum homogenous weight is 43.

Homogenous weight enumerator: w(x)=1x^0+34x^43+43x^44+98x^45+109x^46+338x^47+314x^48+626x^49+527x^50+894x^51+540x^52+1084x^53+761x^54+1284x^55+1157x^56+1328x^57+1717x^58+2148x^59+3218x^60+3588x^61+5062x^62+4916x^63+5932x^64+4934x^65+4826x^66+3750x^67+3490x^68+2158x^69+1694x^70+1292x^71+1013x^72+1098x^73+862x^74+1138x^75+608x^76+1034x^77+411x^78+622x^79+261x^80+252x^81+147x^82+84x^83+60x^84+54x^85+9x^86+12x^87+2x^88+2x^89+1x^90+1x^92+2x^94

The gray image is a code over GF(2) with n=256, k=16 and d=86.
This code was found by Heurico 1.16 in 98.3 seconds.