The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+298x^18+308x^19+655x^20+456x^21+654x^22+496x^23+687x^24+248x^25+230x^26+28x^27+29x^28+2x^30+4x^32

The gray image is a code over GF(2) with n=88, k=12 and d=36.
This code was found by Heurico 1.11 in 1.88 seconds.