The generator matrix

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

generates a code of length 78 over Z3[X]/(X^2) who´s minimum homogenous weight is 153.

Homogenous weight enumerator: w(x)=1x^0+280x^153+300x^156+78x^159+28x^162+12x^165+12x^168+2x^171+12x^174+4x^180

The gray image is a linear code over GF(3) with n=234, k=6 and d=153.
This code was found by Heurico 1.16 in 0.169 seconds.