The generator matrix

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

generates a code of length 18 over Z9 who´s minimum homogenous weight is 24.

Homogenous weight enumerator: w(x)=1x^0+92x^24+330x^25+462x^26+1272x^27+2490x^28+2232x^29+4688x^30+7152x^31+7884x^32+12668x^33+17436x^34+17958x^35+19636x^36+22620x^37+17316x^38+15506x^39+12558x^40+5994x^41+4856x^42+2970x^43+642x^44+304x^45+54x^46+20x^48+6x^51

The gray image is a code over GF(3) with n=54, k=11 and d=24.
This code was found by Heurico 1.13 in 25.2 seconds.