The generator matrix

 1  0  1  1  1  1  1 X+6  1  1  1 2X  1  1  0  1  1  1  1  1 X+6  1  1  1  1  1  1  1  1  1
 0  1 2X+7  8 X+6 X+1 X+5  1 2X 2X+8  7  1 X+1 X+6  1  8 X+5 2X+8  0 2X  1 2X+7 2X+8  8  0 2X  7 2X+7 2X+4  3
 0  0  6  0  6  3  3  3  0  0  3  0  3  6  0  6  3  3  0  6  6  0  6  3  6  0  3  6  0  6
 0  0  0  3  6  6  3  0  3  6  0  6  3  0  3  6  0  6  6  3  3  0  0  6  3  0  6  6  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+74x^54+144x^55+480x^56+412x^57+378x^58+1410x^59+700x^60+756x^61+1440x^62+472x^63+180x^64+42x^65+32x^66+30x^68+2x^69+2x^72+6x^75

The gray image is a code over GF(3) with n=270, k=8 and d=162.
This code was found by Heurico 1.16 in 0.0568 seconds.