The generator matrix

 1  0  1  1  1  6  1  1  0  1  1  0  1  1  2  1
 0  1  3  6  1  1  0  3  1  0  3  1  6  4  0  0
 0  0  4  0  0  4  4  0  0  4  4  4  0  0  0  0
 0  0  0  4  0  4  4  4  4  0  4  0  0  4  0  0
 0  0  0  0  4  4  4  4  0  4  0  4  4  0  4  0

generates a code of length 16 over Z8 who´s minimum homogenous weight is 12.

Homogenous weight enumerator: w(x)=1x^0+20x^12+40x^13+31x^14+152x^15+27x^16+152x^17+28x^18+40x^19+16x^20+4x^22+1x^30

The gray image is a code over GF(2) with n=64, k=9 and d=24.
This code was found by Heurico 1.16 in 0.00249 seconds.