The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+61x^20+260x^21+375x^22+696x^23+915x^24+1068x^25+1402x^26+1152x^27+917x^28+704x^29+352x^30+168x^31+56x^32+44x^33+14x^34+2x^36+4x^37+1x^38

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 0.699 seconds.