The generator matrix

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

generates a code of length 17 over Z8 who´s minimum homogenous weight is 12.

Homogenous weight enumerator: w(x)=1x^0+500x^12+1008x^13+2350x^14+3616x^15+5637x^16+6048x^17+6262x^18+3840x^19+2212x^20+752x^21+410x^22+96x^23+34x^24+2x^26

The gray image is a code over GF(2) with n=68, k=15 and d=24.
This code was found by Heurico 1.11 in 86.6 seconds.