The generator matrix

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

generates a code of length 26 over Z8 who´s minimum homogenous weight is 18.

Homogenous weight enumerator: w(x)=1x^0+22x^18+72x^19+216x^20+402x^21+759x^22+1314x^23+1876x^24+2298x^25+2478x^26+2314x^27+1810x^28+1334x^29+808x^30+390x^31+186x^32+62x^33+28x^34+6x^35+6x^36+1x^38+1x^48

The gray image is a code over GF(2) with n=104, k=14 and d=36.
This code was found by Heurico 1.16 in 2.22 seconds.