The generator matrix

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

generates a code of length 19 over Z3[X]/(X^2) who´s minimum homogenous weight is 30.

Homogenous weight enumerator: w(x)=1x^0+802x^30+2682x^33+4452x^36+6840x^39+4176x^42+702x^45+24x^48+2x^54+2x^57

The gray image is a linear code over GF(3) with n=57, k=9 and d=30.
This code was found by Heurico 1.16 in 1.05 seconds.