The generator matrix

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

generates a code of length 14 over Z9 who´s minimum homogenous weight is 18.

Homogenous weight enumerator: w(x)=1x^0+182x^18+108x^20+156x^21+324x^22+864x^23+364x^24+1944x^25+2592x^26+364x^27+3888x^28+3456x^29+546x^30+2592x^31+1728x^32+364x^33+182x^36+28x^42

The gray image is a code over GF(3) with n=42, k=9 and d=18.
This code was found by Heurico 1.16 in 2.32 seconds.