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  X  X  1
 0  X  0  0  0  X  X  X a*X a^3*X  0  X a*X a^6*X a^5*X 2*X a^6*X 2*X a^7*X a^5*X a*X a^7*X  X  X  0
 0  0  X  0  0 a^7*X a^6*X a*X 2*X a^7*X  X a^7*X a*X a^2*X  X a^7*X  X a^2*X 2*X a*X a^7*X a*X  0  0  X
 0  0  0  X  0 a^7*X  X a^2*X a^2*X a^6*X a^3*X a^6*X a^3*X a^5*X  X  X a^5*X  X a^2*X a^2*X a^3*X 2*X a^6*X  X  X
 0  0  0  0  X a^6*X 2*X a^3*X  X  X a*X a*X  X a^2*X  0 2*X a^5*X a*X  X  0 a^3*X a^3*X a^6*X a*X a^7*X

generates a code of length 25 over F9[X]/(X^2) who´s minimum homogenous weight is 162.

Homogenous weight enumerator: w(x)=1x^0+752x^162+3016x^171+4848x^180+5832x^184+8856x^189+93312x^193+13456x^198+373248x^202+15384x^207+9840x^216+2896x^225

The gray image is a linear code over GF(9) with n=225, k=6 and d=162.
This code was found by Heurico 1.16 in 31.5 seconds.