The generator matrix

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

generates a code of length 19 over Z9[X]/(X^2+3,3X) who´s minimum homogenous weight is 35.

Homogenous weight enumerator: w(x)=1x^0+336x^35+360x^36+462x^38+682x^39+336x^41+8x^45+2x^48

The gray image is a code over GF(3) with n=171, k=7 and d=105.
This code was found by Heurico 1.16 in 0.213 seconds.