The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+163x^64+178x^66+208x^68+128x^70+203x^72+106x^74+22x^76+4x^78+9x^80+1x^84+1x^124

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 0.154 seconds.