The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  2  2  2  4  1  1  4  1  1  1  1  1
 0  2  0  0  0  0  0  0  0  0  2  4  2  4  2  6  4  2  0  6  6  4  0
 0  0  2  0  0  0  2  6  2  4  2  2  6  2  4  6  4  4  4  4  2  6  4
 0  0  0  2  0  2  2  2  4  6  0  4  2  2  0  4  0  4  6  2  2  2  4
 0  0  0  0  2  2  4  6  2  0  0  4  6  2  2  2  6  0  2  6  2  4  0
 0  0  0  0  0  4  4  4  0  4  4  4  0  4  0  4  4  4  0  4  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+22x^16+82x^17+108x^18+160x^19+266x^20+428x^21+592x^22+690x^23+699x^24+458x^25+238x^26+164x^27+93x^28+56x^29+20x^30+10x^31+6x^32+2x^34+1x^36

The gray image is a code over GF(2) with n=92, k=12 and d=32.
This code was found by Heurico 1.16 in 0.21 seconds.