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

generates a code of length 75 over Z9[X]/(X^2+3,3X) who´s minimum homogenous weight is 137.

Homogenous weight enumerator: w(x)=1x^0+66x^137+166x^138+276x^140+328x^141+594x^143+780x^144+1092x^146+2326x^147+2688x^149+3662x^150+2694x^152+2640x^153+726x^155+680x^156+378x^158+148x^159+168x^161+88x^162+60x^164+52x^165+6x^167+18x^168+14x^171+12x^174+2x^177+10x^180+2x^183+2x^189+2x^192+2x^198

The gray image is a code over GF(3) with n=675, k=9 and d=411.
This code was found by Heurico 1.16 in 23 seconds.