The generator matrix

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

generates a code of length 24 over Z9[X]/(X^2+3,3X) who´s minimum homogenous weight is 40.

Homogenous weight enumerator: w(x)=1x^0+1152x^40+2460x^41+6116x^42+9642x^43+22806x^44+29470x^45+58080x^46+70632x^47+90308x^48+103254x^49+72222x^50+40396x^51+17214x^52+6696x^53+632x^54+168x^55+144x^56+16x^57+30x^58+2x^63

The gray image is a code over GF(3) with n=216, k=12 and d=120.
This code was found by Heurico 1.16 in 169 seconds.