The generator matrix

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

generates a code of length 22 over Z8 who´s minimum homogenous weight is 15.

Homogenous weight enumerator: w(x)=1x^0+98x^15+246x^16+800x^17+1121x^18+2690x^19+3160x^20+5526x^21+5261x^22+5822x^23+3196x^24+2614x^25+1142x^26+790x^27+176x^28+82x^29+26x^30+8x^31+5x^32+2x^33+1x^34+1x^38

The gray image is a code over GF(2) with n=88, k=15 and d=30.
This code was found by Heurico 1.16 in 11.3 seconds.