The generator matrix

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

generates a code of length 15 over Z8 who´s minimum homogenous weight is 4.

Homogenous weight enumerator: w(x)=1x^0+74x^4+64x^6+731x^8+456x^10+2792x^12+2048x^13+3744x^14+12288x^15+5031x^16+2048x^17+1648x^18+1314x^20+224x^22+285x^24+8x^26+12x^28

The gray image is a code over GF(2) with n=60, k=15 and d=8.
This code was found by Heurico 1.16 in 0.85 seconds.