The generator matrix

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

generates a code of length 10 over F9[X]/(X^2) who´s minimum homogenous weight is 64.

Homogenous weight enumerator: w(x)=1x^0+72x^64+360x^72+1152x^73+80x^81+4608x^82+288x^90

The gray image is a linear code over GF(9) with n=90, k=4 and d=64.
This code was found by Heurico 1.16 in 0.00143 seconds.