The generator matrix

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

generates a code of length 26 over Z8 who´s minimum homogenous weight is 18.

Homogenous weight enumerator: w(x)=1x^0+61x^18+174x^19+457x^20+788x^21+1518x^22+2468x^23+3610x^24+4664x^25+5104x^26+4920x^27+3576x^28+2456x^29+1575x^30+748x^31+405x^32+152x^33+59x^34+10x^35+15x^36+4x^37+2x^38+1x^46

The gray image is a code over GF(2) with n=104, k=15 and d=36.
This code was found by Heurico 1.16 in 8.82 seconds.