The generator matrix

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

generates a code of length 75 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 142.

Homogenous weight enumerator: w(x)=1x^0+252x^142+330x^143+816x^144+1584x^145+1128x^146+1546x^147+1926x^148+1314x^149+1898x^150+2142x^151+1110x^152+1640x^153+1782x^154+780x^155+522x^156+486x^157+132x^158+84x^159+36x^160+24x^161+22x^162+36x^163+18x^164+18x^165+18x^166+12x^167+2x^168+12x^170+2x^171+6x^174+2x^177+2x^183

The gray image is a code over GF(3) with n=675, k=9 and d=426.
This code was found by Heurico 1.16 in 1.66 seconds.