The generator matrix

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

generates a code of length 84 over Z9[X]/(X^2+3,3X) who´s minimum homogenous weight is 156.

Homogenous weight enumerator: w(x)=1x^0+88x^156+108x^157+306x^158+834x^159+1404x^160+1188x^161+2782x^162+2796x^163+2964x^164+4568x^165+4380x^166+4116x^167+5934x^168+6054x^169+4404x^170+5248x^171+4032x^172+2262x^173+2320x^174+1296x^175+600x^176+458x^177+240x^178+144x^179+178x^180+60x^181+30x^182+110x^183+30x^184+18x^185+46x^186+6x^187+6x^188+22x^189+6x^190+6x^192+4x^198

The gray image is a code over GF(3) with n=756, k=10 and d=468.
This code was found by Heurico 1.16 in 13 seconds.