The generator matrix

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

generates a code of length 25 over Z8 who´s minimum homogenous weight is 18.

Homogenous weight enumerator: w(x)=1x^0+216x^18+626x^19+1579x^20+3046x^21+4780x^22+7692x^23+9298x^24+10956x^25+9198x^26+7956x^27+4990x^28+2920x^29+1464x^30+524x^31+193x^32+68x^33+22x^34+2x^35+3x^36+2x^37

The gray image is a code over GF(2) with n=100, k=16 and d=36.
This code was found by Heurico 1.11 in 14.5 seconds.