The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+139x^12+64x^13+250x^14+128x^15+254x^16+64x^17+100x^18+21x^20+2x^22+1x^24

The gray image is a code over GF(2) with n=60, k=10 and d=24.
This code was found by Heurico 1.16 in 0.0104 seconds.