The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+199x^20+376x^22+259x^24+120x^26+53x^28+16x^30

The gray image is a code over GF(2) with n=92, k=10 and d=40.
This code was found by Heurico 1.16 in 0.013 seconds.