The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  2  1  1  1  1  1  1  1  0  1  1  1  2  1  2  1  1  2  1  1  1  1  0  2  1  2  2  1  4  4  1  1  2  1  1  4
 0  2  0  0  0  2  6  2  4  0  4  4  2  2  6  2  0  4  0  6  2  4  2  6  0  2  4  6  0  0  6  2  2  6  6  4  4  6  0  2  6  4  2  2  0  0  2  2  2  2  0  6  0  4  4  4  6  2  6  4  2  6  6  0  2  6  6  6  0  4  2
 0  0  2  0  2  2  2  4  6  2  4  0  6  0  2  4  0  2  6  6  4  0  0  2  2  6  0  4  4  2  0  6  2  2  0  2  0  6  0  4  0  2  6  6  0  4  0  2  4  4  4  0  2  2  0  0  0  6  2  4  4  2  6  2  4  2  6  6  2  6  0
 0  0  0  2  2  0  2  6  2  4  0  2  4  0  2  6  4  4  6  6  0  2  6  0  4  2  6  4  0  2  2  0  0  0  0  4  6  6  6  2  6  6  2  2  0  0  6  4  6  2  2  4  6  6  6  4  4  4  2  2  6  4  4  0  2  6  6  2  6  4  6
 0  0  0  0  4  0  0  0  0  0  4  4  0  4  4  0  4  4  0  4  0  4  4  4  4  0  0  4  0  4  4  4  4  0  0  4  4  0  0  0  4  0  0  4  0  4  0  0  4  4  4  0  4  4  0  0  4  4  0  4  4  0  0  0  0  0  4  4  4  4  0
 0  0  0  0  0  4  4  0  4  4  0  4  0  0  4  4  4  4  0  0  4  0  0  0  0  0  4  4  4  4  4  4  4  4  4  4  0  0  0  0  0  4  4  0  4  4  4  4  4  0  4  0  0  0  0  4  4  4  4  4  0  4  4  0  0  4  4  4  0  4  4

generates a code of length 71 over Z8 who´s minimum homogenous weight is 64.

Homogenous weight enumerator: w(x)=1x^0+129x^64+12x^65+184x^66+72x^67+241x^68+84x^69+259x^70+176x^71+262x^72+84x^73+200x^74+72x^75+86x^76+12x^77+84x^78+36x^80+36x^82+12x^84+5x^86+1x^116

The gray image is a code over GF(2) with n=284, k=11 and d=128.
This code was found by Heurico 1.16 in 0.433 seconds.