The generator matrix

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

generates a code of length 23 over Z8 who´s minimum homogenous weight is 20.

Homogenous weight enumerator: w(x)=1x^0+114x^20+136x^22+177x^24+56x^26+25x^28+2x^32+1x^36

The gray image is a code over GF(2) with n=92, k=9 and d=40.
This code was found by Heurico 1.16 in 0.0475 seconds.