The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  X  1  0  X
 0  X  0  3 2X X+6  X 2X+6 2X  3 X+6 2X+6  0  3 2X+6 X+3 2X X+3 X+6 2X  3  6  X X+6
 0  0  X 2X+6  3 2X+6  X X+6 2X+3  3 X+6 2X  3 X+6  X  6  X X+6  6  6 2X+6 2X 2X+6  0

generates a code of length 24 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 44.

Homogenous weight enumerator: w(x)=1x^0+198x^44+100x^45+162x^46+366x^47+556x^48+324x^49+324x^50+48x^51+54x^53+8x^54+30x^56+14x^57+2x^63

The gray image is a code over GF(3) with n=216, k=7 and d=132.
This code was found by Heurico 1.16 in 0.0111 seconds.