The generator matrix

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

generates a code of length 15 over Z8 who´s minimum homogenous weight is 10.

Homogenous weight enumerator: w(x)=1x^0+149x^10+32x^11+447x^12+224x^13+925x^14+480x^15+976x^16+288x^17+439x^18+109x^20+23x^22+3x^24

The gray image is a code over GF(2) with n=60, k=12 and d=20.
This code was found by Heurico 1.16 in 0.199 seconds.