The generator matrix

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

generates a code of length 22 over Z8 who´s minimum homogenous weight is 18.

Homogenous weight enumerator: w(x)=1x^0+160x^18+132x^19+304x^20+248x^21+377x^22+272x^23+293x^24+104x^25+98x^26+12x^27+42x^28+5x^30

The gray image is a code over GF(2) with n=88, k=11 and d=36.
This code was found by Heurico 1.16 in 0.0871 seconds.