The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+302x^18+536x^19+1766x^20+2648x^21+5130x^22+6988x^23+10147x^24+10168x^25+10232x^26+7428x^27+5349x^28+2440x^29+1550x^30+468x^31+300x^32+40x^33+30x^34+4x^35+5x^36+4x^38

The gray image is a code over GF(2) with n=100, k=16 and d=36.
This code was found by Heurico 1.16 in 39.5 seconds.