The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+47x^20+84x^21+257x^22+214x^23+622x^24+490x^25+748x^26+438x^27+560x^28+242x^29+262x^30+50x^31+49x^32+14x^33+12x^34+2x^35+1x^36+2x^37+1x^38

The gray image is a code over GF(2) with n=104, k=12 and d=40.
This code was found by Heurico 1.16 in 0.2 seconds.