The generator matrix

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

generates a code of length 26 over Z8 who´s minimum homogenous weight is 20.

Homogenous weight enumerator: w(x)=1x^0+207x^20+104x^21+516x^22+456x^23+1120x^24+976x^25+1428x^26+976x^27+1146x^28+456x^29+524x^30+104x^31+135x^32+28x^34+15x^36

The gray image is a code over GF(2) with n=104, k=13 and d=40.
This code was found by Heurico 1.16 in 0.819 seconds.