The generator matrix

 1  1  1  1  1  1  1  1  1
 0  X  0  0  X  X  0  X 2X
 0  0  X  0 3X 2X  X 4X  0
 0  0  0  X 3X  X 4X 3X  0

generates a code of length 9 over Z5[X]/(X^2) who´s minimum homogenous weight is 25.

Homogenous weight enumerator: w(x)=1x^0+56x^25+132x^30+132x^35+2500x^36+232x^40+72x^45

The gray image is a linear code over GF(5) with n=45, k=5 and d=25.
This code was found by Heurico 1.16 in 0.00298 seconds.