The generator matrix

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

generates a code of length 23 over Z8 who´s minimum homogenous weight is 21.

Homogenous weight enumerator: w(x)=1x^0+62x^21+57x^22+54x^23+23x^24+26x^25+13x^26+18x^27+1x^30+1x^34

The gray image is a code over GF(2) with n=92, k=8 and d=42.
This code was found by Heurico 1.16 in 0.00933 seconds.