The generator matrix

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

generates a code of length 15 over Z8 who´s minimum homogenous weight is 12.

Homogenous weight enumerator: w(x)=1x^0+55x^12+32x^13+144x^14+64x^15+127x^16+32x^17+48x^18+8x^20+1x^28

The gray image is a code over GF(2) with n=60, k=9 and d=24.
This code was found by Heurico 1.16 in 0.00339 seconds.