The generator matrix

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

generates a code of length 24 over F9[X]/(X^2) who´s minimum homogenous weight is 162.

Homogenous weight enumerator: w(x)=1x^0+176x^162+872x^171+1120x^180+5832x^184+1056x^189+46656x^193+1480x^198+1448x^207+408x^216

The gray image is a linear code over GF(9) with n=216, k=5 and d=162.
This code was found by Heurico 1.16 in 0.41 seconds.