The generator matrix

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

generates a code of length 71 over Z9[X]/(X^2+3,3X) who´s minimum homogenous weight is 131.

Homogenous weight enumerator: w(x)=1x^0+480x^131+594x^132+1572x^133+3288x^134+3750x^135+6444x^136+8628x^137+9984x^138+11856x^139+15246x^140+15108x^141+16818x^142+19200x^143+15240x^144+14670x^145+12894x^146+8052x^147+6258x^148+3546x^149+1704x^150+606x^151+666x^152+162x^153+36x^154+114x^155+54x^156+48x^157+78x^158+18x^159+12x^160+12x^161+8x^162

The gray image is a code over GF(3) with n=639, k=11 and d=393.
This code was found by Heurico 1.16 in 70.6 seconds.