The generator matrix

 1  0  1  1  1  1  1  0  1  1  1  X  1  1  1  X  1
 0  1  1  2 2X+1  0  2  1  X 2X+1 X+2  1  X X+1 X+2  1  0
 0  0 2X  0  X  X 2X 2X 2X  0  X  X  X 2X 2X 2X  0

generates a code of length 17 over Z3[X]/(X^2) who´s minimum homogenous weight is 30.

Homogenous weight enumerator: w(x)=1x^0+22x^30+90x^32+18x^33+36x^35+20x^36+36x^38+20x^39

The gray image is a linear code over GF(3) with n=51, k=5 and d=30.
This code was found by Heurico 1.16 in 0.000755 seconds.