The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  3
 0  3  0  0  0  0  0  0  3  3  3  0  3
 0  0  3  0  0  0  0  3  6  3  6  0  3
 0  0  0  3  0  0  0  6  6  0  3  6  0
 0  0  0  0  3  0  0  6  6  3  0  3  0
 0  0  0  0  0  3  0  6  6  6  0  0  3
 0  0  0  0  0  0  3  6  3  3  6  6  6

generates a code of length 13 over Z9 who´s minimum homogenous weight is 15.

Homogenous weight enumerator: w(x)=1x^0+88x^15+172x^18+226x^21+1966x^24+3396x^27+412x^30+214x^33+76x^36+10x^39

The gray image is a code over GF(3) with n=39, k=8 and d=15.
This code was found by Heurico 1.16 in 0.0638 seconds.