The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+154x^20+460x^21+845x^22+1348x^23+1859x^24+2224x^25+2524x^26+2368x^27+1818x^28+1438x^29+797x^30+300x^31+166x^32+52x^33+26x^34+2x^36+2x^37

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 2.54 seconds.