The generator matrix

 1  0  0  0  0  1  1  1  1  1  6  1  1  3
 0  1  0  0  0  0  1  3  7  1  1  5  3  1
 0  0  1  0  0  0  8  5  5  3  1  3  4  4
 0  0  0  1  0  1  4  6  6  7  8  8  1  5
 0  0  0  0  1  8  2  5  6  3  0  8  4  7
 0  0  0  0  0  6  6  6  3  0  3  3  0  0

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

Homogenous weight enumerator: w(x)=1x^0+426x^18+696x^19+1578x^20+2288x^21+2496x^22+6024x^23+9346x^24+8976x^25+24276x^26+19808x^27+13830x^28+32712x^29+19886x^30+10680x^31+13470x^32+6904x^33+2688x^34+672x^35+366x^36+20x^39+4x^42

The gray image is a code over GF(3) with n=42, k=11 and d=18.
This code was found by Heurico 1.13 in 1150 seconds.