The generator matrix

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

generates a code of length 42 over Z3[X]/(X^2) who´s minimum homogenous weight is 75.

Homogenous weight enumerator: w(x)=1x^0+388x^75+1000x^78+1418x^81+1254x^84+1116x^87+812x^90+456x^93+96x^96+8x^99+8x^102+2x^105+2x^108

The gray image is a linear code over GF(3) with n=126, k=8 and d=75.
This code was found by Heurico 1.16 in 0.483 seconds.