The generator matrix

 1  0  0  1  1  1  1  1  0  1  1  1  6  1  1
 0  1  0  1  0  8  1  8  1  0  7  5  1  0  0
 0  0  1  8  1  8  1  0  8  8  6  7  7  0  0
 0  0  0  6  0  0  0  0  3  3  0  0  6  6  3
 0  0  0  0  6  0  0  0  6  3  3  6  6  0  6
 0  0  0  0  0  3  0  3  3  0  3  0  3  3  6
 0  0  0  0  0  0  3  6  3  3  3  3  0  0  6

generates a code of length 15 over Z9 who´s minimum homogenous weight is 18.

Homogenous weight enumerator: w(x)=1x^0+76x^18+486x^21+486x^22+1680x^24+3888x^25+4058x^27+11664x^28+6372x^30+15552x^31+5064x^33+7776x^34+1776x^36+108x^39+60x^42+2x^45

The gray image is a code over GF(3) with n=45, k=10 and d=18.
This code was found by Heurico 1.16 in 3.06 seconds.