The generator matrix

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

generates a code of length 23 over Z8 who´s minimum homogenous weight is 18.

Homogenous weight enumerator: w(x)=1x^0+117x^18+152x^19+413x^20+392x^21+769x^22+464x^23+757x^24+368x^25+367x^26+152x^27+103x^28+8x^29+27x^30+6x^32

The gray image is a code over GF(2) with n=92, k=12 and d=36.
This code was found by Heurico 1.16 in 0.156 seconds.