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  1  1  1  1  1  1  1  1  1  X  X  0  1  1
 0  X 2X  0 X+3 2X X+3 2X+6  0  6  0  6 X+3 2X  6 X+3 X+6 2X+6  X  6  X  3  X 2X 2X+6 2X+6 2X+3  0  0  6  6 X+3 X+3 X+6  X  X  X  0  3 X+3  6 X+6  3 X+3 2X  X  0 X+3
 0  0  6  0  6  0  3  3  6  3  6  3  3  0  0  6  0  6  6  6  3  3  0  6  3  0  3  0  6  6  0  3  6  0  0  3  6  3  0  0  6  6  0  3  0  6  3  3
 0  0  0  6  3  6  6  3  3  6  0  3  3  0  3  0  3  6  6  6  0  0  6  3  6  3  0  3  6  0  0  0  6  0  3  6  3  0  6  6  3  0  0  3  6  6  3  3

generates a code of length 48 over Z9[X]/(X^2+3,3X) who´s minimum homogenous weight is 90.

Homogenous weight enumerator: w(x)=1x^0+68x^90+254x^93+486x^94+168x^96+972x^97+104x^99+112x^102+18x^105+2x^117+2x^135

The gray image is a code over GF(3) with n=432, k=7 and d=270.
This code was found by Heurico 1.16 in 0.0591 seconds.