The generator matrix

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

generates a code of length 26 over Z3[X]/(X^2) who´s minimum homogenous weight is 42.

Homogenous weight enumerator: w(x)=1x^0+464x^42+1530x^45+3232x^48+5048x^51+5498x^54+3118x^57+686x^60+72x^63+22x^66+12x^69

The gray image is a linear code over GF(3) with n=78, k=9 and d=42.
This code was found by Heurico 1.16 in 60.8 seconds.