The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  X  1  1  1  1  1  X  1  1  1  1  1  1  1  1  1
 0 X^2  0  0  0  0  0  0  0  0  0  0  0  0 2X^2 X^2 X^2 2X^2 2X^2 2X^2  0 X^2 X^2 2X^2 X^2 X^2 X^2 X^2 2X^2  0 X^2  0 X^2 X^2 X^2 X^2 X^2 X^2  0  0 X^2 2X^2 X^2 X^2 2X^2  0  0  0 2X^2 2X^2
 0  0 X^2  0  0  0  0  0  0  0  0 X^2 2X^2 2X^2  0 2X^2 X^2 2X^2 X^2  0 X^2 X^2  0 X^2 X^2 2X^2  0 X^2 X^2  0 X^2 2X^2 2X^2 2X^2  0 X^2 X^2  0  0 X^2  0 X^2 2X^2  0 X^2 2X^2 2X^2 X^2 X^2  0
 0  0  0 X^2  0  0  0  0 X^2 2X^2 2X^2 2X^2  0  0  0  0 2X^2 2X^2 X^2 X^2 2X^2 X^2 2X^2 2X^2  0  0 X^2 X^2 2X^2 2X^2 X^2  0 2X^2  0 2X^2  0 2X^2  0 X^2  0  0 2X^2 X^2 2X^2 X^2 X^2 X^2 X^2  0 X^2
 0  0  0  0 X^2  0  0 X^2 2X^2  0 2X^2  0  0 2X^2  0 X^2 2X^2 2X^2  0 X^2 X^2 2X^2  0 X^2  0 X^2 2X^2 X^2  0  0 2X^2 2X^2 X^2 X^2  0  0 X^2 X^2 X^2  0 2X^2  0 2X^2 2X^2 X^2 2X^2 X^2 X^2  0 X^2
 0  0  0  0  0 X^2  0 2X^2 2X^2 X^2  0 2X^2 2X^2 2X^2 2X^2 X^2 X^2  0 X^2 X^2 X^2 2X^2  0 2X^2  0  0  0 2X^2 2X^2 2X^2 X^2 2X^2  0  0 2X^2 X^2 X^2 2X^2 X^2 2X^2  0 2X^2  0 2X^2 2X^2  0 X^2 X^2 2X^2 2X^2
 0  0  0  0  0  0 X^2 2X^2 2X^2 2X^2 2X^2 2X^2 2X^2 X^2 X^2  0 2X^2 X^2 X^2 2X^2  0 2X^2 2X^2 X^2 X^2  0 2X^2 X^2 2X^2 X^2 X^2 2X^2 X^2 X^2  0 2X^2 2X^2 2X^2  0 X^2  0  0  0 2X^2  0 X^2 2X^2  0 X^2 X^2

generates a code of length 50 over Z3[X]/(X^3) who´s minimum homogenous weight is 84.

Homogenous weight enumerator: w(x)=1x^0+98x^84+192x^87+208x^90+228x^93+728x^96+2144x^99+13122x^100+2168x^102+198x^105+170x^108+172x^111+108x^114+90x^117+30x^120+16x^123+4x^126+4x^129+2x^144

The gray image is a linear code over GF(3) with n=450, k=9 and d=252.
This code was found by Heurico 1.16 in 2.37 seconds.