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  X  X  X  X  1  1  X  1  X  X  X  1  1  1  1  1  1  1  1  1  1  X  X  X  X  X  3  3  3  3  3  X  X  3  3  3
 0  3  0  3  0  3  6  6  6  0  0  3  3  0  3  6  6  6  0  0  3  3  0  3  6  6  6  0  0  3  3  0  3  6  6  6  0  0  3  3  3  0  3  0  6  6  6  6  3  6  0  3  6  0  0  3  3  0  3  3  6  6  0  3  3  0  6  6  3  6  3  6  0
 0  0  3  6  6  3  0  3  6  0  3  6  3  6  0  0  3  6  0  3  6  3  6  0  0  3  6  0  3  6  3  6  0  0  3  6  0  3  6  3  0  3  6  6  6  0  3  6  3  0  6  0  3  0  3  6  3  6  6  3  0  3  6  3  0  3  0  3  0  6  6  6  6

generates a code of length 73 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 145.

Homogenous weight enumerator: w(x)=1x^0+180x^145+18x^148+16x^150+8x^153+18x^154+2x^159

The gray image is a code over GF(3) with n=657, k=5 and d=435.
This code was found by Heurico 1.16 in 0.647 seconds.