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

generates a code of length 75 over Z9[X]/(X^2+3,3X) who´s minimum homogenous weight is 151.

Homogenous weight enumerator: w(x)=1x^0+66x^151+2x^153+6x^154+6x^159

The gray image is a code over GF(3) with n=675, k=4 and d=453.
This code was found by Heurico 1.16 in 0.151 seconds.