The generator matrix

 1  0  1  1  1  1  1  6  1  1  1 X+6  1  1 2X  1 2X+6  1  1  1  1  1  1  X X+3  1  X  1  1
 0  1  1  8 X+6 X+5 2X+7  1  8  0 2X+1  1 2X 2X+8  1 X+1  1  7  X  5  6 X+7 2X+5  1  1  4 2X+3  8  6
 0  0 2X  0  6  6 2X+6 X+6 2X 2X+3 X+6 2X+6 2X+3 2X+6 2X+6  3 X+6  3 X+6  X X+6  X  X  X X+6  3 2X+3 2X+6 X+3
 0  0  0  3  3  0  6  3  6  0  0  6  3  3  3  6  0  3  3  3  6  6  0  0  3  0  3  3  0

generates a code of length 29 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 51.

Homogenous weight enumerator: w(x)=1x^0+132x^51+198x^52+504x^53+1380x^54+1188x^55+1728x^56+2946x^57+2862x^58+2808x^59+2940x^60+1584x^61+792x^62+478x^63+132x^66+6x^69+4x^72

The gray image is a code over GF(3) with n=261, k=9 and d=153.
This code was found by Heurico 1.16 in 0.46 seconds.