The generator matrix

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

generates a code of length 23 over Z8 who´s minimum homogenous weight is 15.

Homogenous weight enumerator: w(x)=1x^0+60x^15+292x^16+516x^17+1470x^18+2322x^19+5423x^20+6482x^21+11233x^22+9740x^23+11235x^24+6814x^25+5501x^26+2212x^27+1445x^28+446x^29+219x^30+64x^31+36x^32+14x^33+9x^34+2x^35

The gray image is a code over GF(2) with n=92, k=16 and d=30.
This code was found by Heurico 1.16 in 26.1 seconds.