The generator matrix

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

generates a code of length 24 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 40.

Homogenous weight enumerator: w(x)=1x^0+408x^40+600x^41+2030x^42+4068x^43+6450x^44+9314x^45+22056x^46+20928x^47+29650x^48+38808x^49+20712x^50+13028x^51+6894x^52+1776x^53+138x^54+156x^55+78x^56+26x^57+24x^58+2x^60

The gray image is a code over GF(3) with n=216, k=11 and d=120.
This code was found by Heurico 1.16 in 19.7 seconds.