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

generates a code of length 91 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 181.

Homogenous weight enumerator: w(x)=1x^0+144x^181+54x^182+12x^186+8x^189+18x^190+4x^192+2x^201

The gray image is a code over GF(3) with n=819, k=5 and d=543.
This code was found by Heurico 1.16 in 0.321 seconds.