The generator matrix

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

generates a code of length 71 over Z9[X]/(X^2+3,3X) who´s minimum homogenous weight is 135.

Homogenous weight enumerator: w(x)=1x^0+906x^135+774x^136+450x^137+2310x^138+1170x^139+720x^140+2994x^141+1764x^142+1134x^143+2612x^144+1548x^145+576x^146+1524x^147+558x^148+36x^149+410x^150+18x^151+62x^153+48x^156+50x^159+10x^162+6x^165+2x^168

The gray image is a code over GF(3) with n=639, k=9 and d=405.
This code was found by Heurico 1.16 in 94 seconds.