The generator matrix

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

generates a code of length 23 over Z8 who´s minimum homogenous weight is 16.

Homogenous weight enumerator: w(x)=1x^0+153x^16+544x^17+1273x^18+2888x^19+4647x^20+8126x^21+9055x^22+11648x^23+9645x^24+8342x^25+4633x^26+2680x^27+1157x^28+522x^29+141x^30+64x^31+13x^32+2x^33+2x^34

The gray image is a code over GF(2) with n=92, k=16 and d=32.
This code was found by Heurico 1.16 in 26.1 seconds.