The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+299x^20+256x^21+954x^22+1136x^23+1928x^24+2192x^25+2794x^26+2208x^27+2060x^28+1120x^29+894x^30+240x^31+254x^32+16x^33+30x^34+1x^36+1x^48

The gray image is a code over GF(2) with n=104, k=14 and d=40.
This code was found by Heurico 1.16 in 3.62 seconds.