The generator matrix

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

generates a code of length 72 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 132.

Homogenous weight enumerator: w(x)=1x^0+450x^132+948x^133+3924x^134+6260x^135+8394x^136+13746x^137+17860x^138+20946x^139+29550x^140+38056x^141+38886x^142+51474x^143+54578x^144+46836x^145+50724x^146+46806x^147+33564x^148+28302x^149+18450x^150+9786x^151+6732x^152+3124x^153+960x^154+606x^155+242x^156+30x^157+72x^158+50x^159+24x^160+24x^161+18x^162+6x^163+12x^164

The gray image is a code over GF(3) with n=648, k=12 and d=396.
This code was found by Heurico 1.16 in 608 seconds.