The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+61x^18+198x^19+405x^20+492x^21+571x^22+674x^23+601x^24+512x^25+275x^26+146x^27+127x^28+20x^29+5x^30+6x^31+2x^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 0.148 seconds.