The generator matrix

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

generates a code of length 77 over Z9[X]/(X^2+3,3X) who´s minimum homogenous weight is 147.

Homogenous weight enumerator: w(x)=1x^0+434x^147+54x^148+144x^149+600x^150+486x^151+216x^152+856x^153+1296x^154+432x^155+704x^156+594x^157+180x^158+210x^159+170x^162+62x^165+72x^168+42x^171+6x^174+2x^207

The gray image is a code over GF(3) with n=693, k=8 and d=441.
This code was found by Heurico 1.16 in 3.75 seconds.