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  X  1
 0  X 2X  0 X+3 2X  0 X+3 2X  6 X+3 2X+6 X+6 2X+3  0 X+3 2X  3 X+6 2X+6 X+3 2X+6  0  3  3  X 2X+6 2X+6  0  6 X+6 2X  X 2X+6 X+3  0
 0  0  6  0  0  0  6  3  6  6  0  3  6  6  0  3  0  6  6  3  0  6  3  0  3  6  0  0  0  3  6  6  6  3  6  0
 0  0  0  6  0  6  6  3  6  0  0  6  6  3  0  0  6  6  0  6  3  0  6  6  3  3  6  0  6  3  3  3  3  3  0  0
 0  0  0  0  3  3  6  3  3  6  6  3  3  6  6  6  6  0  0  0  6  6  0  3  0  3  0  3  6  6  0  3  6  6  3  0

generates a code of length 36 over Z9[X]/(X^2+3,3X) who´s minimum homogenous weight is 63.

Homogenous weight enumerator: w(x)=1x^0+86x^63+78x^65+220x^66+78x^68+186x^69+648x^70+102x^71+3168x^72+1296x^73+114x^74+208x^75+66x^77+166x^78+42x^80+44x^81+6x^83+40x^84+6x^87+4x^90+2x^105

The gray image is a code over GF(3) with n=324, k=8 and d=189.
This code was found by Heurico 1.16 in 0.143 seconds.