The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+63x^18+252x^19+685x^20+1642x^21+2651x^22+5618x^23+6612x^24+10858x^25+8683x^26+11002x^27+6482x^28+5678x^29+2854x^30+1542x^31+547x^32+254x^33+77x^34+18x^35+9x^36+7x^38+1x^42

The gray image is a code over GF(2) with n=104, k=16 and d=36.
This code was found by Heurico 1.16 in 29.1 seconds.