The generator matrix

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

generates a code of length 16 over Z9 who´s minimum homogenous weight is 18.

Homogenous weight enumerator: w(x)=1x^0+44x^18+54x^20+190x^21+54x^22+432x^23+732x^24+540x^25+1404x^26+3410x^27+2160x^28+2592x^29+9180x^30+4320x^31+3456x^32+12018x^33+4320x^34+3456x^35+6426x^36+1728x^37+1728x^38+618x^39+156x^42+28x^45+2x^48

The gray image is a code over GF(3) with n=48, k=10 and d=18.
This code was found by Heurico 1.16 in 2.96 seconds.