The generator matrix

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

generates a code of length 50 over Z3[X]/(X^2) who´s minimum homogenous weight is 91.

Homogenous weight enumerator: w(x)=1x^0+240x^91+342x^92+142x^93+558x^94+540x^95+122x^96+534x^97+630x^98+156x^99+378x^100+486x^101+96x^102+498x^103+402x^104+116x^105+366x^106+264x^107+62x^108+246x^109+180x^110+12x^111+78x^112+66x^113+14x^114+18x^115+6x^116+6x^117+2x^120

The gray image is a linear code over GF(3) with n=150, k=8 and d=91.
This code was found by Heurico 1.16 in 0.774 seconds.