The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+90x^12+96x^13+264x^14+416x^15+331x^16+416x^17+240x^18+96x^19+86x^20+8x^22+4x^24

The gray image is a code over GF(2) with n=64, k=11 and d=24.
This code was found by Heurico 1.16 in 0.032 seconds.