The generator matrix

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

generates a code of length 49 over Z3[X]/(X^2) who´s minimum homogenous weight is 90.

Homogenous weight enumerator: w(x)=1x^0+186x^90+506x^93+366x^96+424x^99+356x^102+240x^105+74x^108+14x^111+6x^114+6x^117+6x^120+2x^126

The gray image is a linear code over GF(3) with n=147, k=7 and d=90.
This code was found by Heurico 1.16 in 0.093 seconds.