The generator matrix

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

generates a code of length 56 over Z3[X]/(X^3) who´s minimum homogenous weight is 111.

Homogenous weight enumerator: w(x)=1x^0+42x^111+162x^112+26x^114+2x^117+6x^120+4x^123

The gray image is a linear code over GF(3) with n=504, k=5 and d=333.
This code was found by Heurico 1.16 in 0.049 seconds.