The generator matrix

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

generates a code of length 26 over Z8 who´s minimum homogenous weight is 21.

Homogenous weight enumerator: w(x)=1x^0+264x^21+457x^22+744x^23+912x^24+1266x^25+918x^26+1336x^27+849x^28+772x^29+373x^30+208x^31+57x^32+18x^33+12x^34+5x^36

The gray image is a code over GF(2) with n=104, k=13 and d=42.
This code was found by Heurico 1.16 in 70.6 seconds.