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

generates a code of length 69 over Z8 who´s minimum homogenous weight is 64.

Homogenous weight enumerator: w(x)=1x^0+79x^64+152x^65+71x^66+256x^67+16x^68+32x^69+16x^70+256x^71+8x^72+16x^73+8x^74+16x^76+32x^77+16x^78+8x^80+24x^81+16x^82+1x^130

The gray image is a code over GF(2) with n=276, k=10 and d=128.
This code was found by Heurico 1.16 in 0.208 seconds.