The generator matrix
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 X 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 2X^2+X 2X X X^2+X X^2+2X X 0 X^2 X 2X^2+2X
generates a code of length 28 over Z3[X]/(X^3) who´s minimum homogenous weight is 55.
Homogenous weight enumerator: w(x)=1x^0+60x^55+144x^56+30x^58+4x^60+4x^66
The gray image is a linear code over GF(3) with n=252, k=5 and d=165.
This code was found by Heurico 1.16 in 0.00391 seconds.