The generator matrix

 1  1  1  1  1  1  1  1  1  1  2  2  1  1  2  2  2  2  1  2  1  1  0
 0  2  0  6  0  6  0  2  4  6  6  4  4  2  6  0  6  0  6  2  2  4  4
 0  0  4  0  0  4  4  4  4  0  0  4  0  4  4  0  0  4  4  4  0  4  0
 0  0  0  4  4  4  4  0  0  0  0  4  4  4  4  4  4  0  0  0  4  4  0

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

Homogenous weight enumerator: w(x)=1x^0+18x^21+61x^22+13x^24+12x^25+18x^26+2x^28+2x^29+1x^30

The gray image is a code over GF(2) with n=92, k=7 and d=42.
This code was found by Heurico 1.16 in 0.235 seconds.