The generator matrix

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

generates a code of length 29 over Z9[X]/(X^2+3,3X) who´s minimum homogenous weight is 49.

Homogenous weight enumerator: w(x)=1x^0+624x^49+1194x^50+4060x^51+8502x^52+12006x^53+23124x^54+35760x^55+50946x^56+69076x^57+87924x^58+85794x^59+70056x^60+48180x^61+20790x^62+9684x^63+3156x^64+300x^65+140x^66+48x^67+42x^68+32x^69+2x^81

The gray image is a code over GF(3) with n=261, k=12 and d=147.
This code was found by Heurico 1.16 in 170 seconds.