The generator matrix

 1  0  1  1  1  1  1  6  1  1  1  X  1 2X  1  1 X+6  X 2X 2X  1  0  1  1 2X+6  1  1  X  1  0
 0  1  1  8 X+6 X+5 2X+7  1 2X 2X+8 X+1  1 X+5  1  8 2X+8  1  1  1  1 2X+7  1 2X+1 X+1  1 X+6  X  1 2X  1
 0  0 2X  0  6  6 2X+6 X+6  0  6 2X  X 2X+6  6 2X 2X+6 2X+6 X+6  6 2X 2X 2X  X  0 X+6 2X+3 X+6  6  0 2X
 0  0  0  3  3  0  6  3  6  6  3  0  0  6  6  3  3  6  3  6  0  0  6  0  3  3  0  3  3  6

generates a code of length 30 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 54.

Homogenous weight enumerator: w(x)=1x^0+526x^54+396x^55+810x^56+1552x^57+1728x^58+3240x^59+2404x^60+3132x^61+3240x^62+1686x^63+576x^64+248x^66+134x^69+10x^72

The gray image is a code over GF(3) with n=270, k=9 and d=162.
This code was found by Heurico 1.16 in 16.3 seconds.