The generator matrix

 1  0  0  1  1  1  6  1
 0  1  0  1  0  7  1  0
 0  0  1  1  1  0  1  2
 0  0  0  2  0  4  2  4
 0  0  0  0  2  2  4  6

generates a code of length 8 over Z8 who´s minimum homogenous weight is 4.

Homogenous weight enumerator: w(x)=1x^0+55x^4+232x^5+850x^6+1792x^7+2287x^8+1872x^9+844x^10+192x^11+57x^12+8x^13+2x^14

The gray image is a code over GF(2) with n=32, k=13 and d=8.
This code was found by Heurico 1.16 in 0.0361 seconds.