The generator matrix

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

generates a code of length 15 over Z8 who´s minimum homogenous weight is 8.

Homogenous weight enumerator: w(x)=1x^0+46x^8+112x^10+517x^12+1352x^14+1429x^16+448x^18+170x^20+8x^22+12x^24+1x^28

The gray image is a code over GF(2) with n=60, k=12 and d=16.
This code was found by Heurico 1.16 in 0.0255 seconds.