The generator matrix

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

generates a code of length 71 over Z9[X]/(X^2+3,3X) who´s minimum homogenous weight is 136.

Homogenous weight enumerator: w(x)=1x^0+1068x^136+1302x^137+1592x^138+2412x^139+1638x^140+1296x^141+2280x^142+1212x^143+1344x^144+1812x^145+1146x^146+626x^147+822x^148+456x^149+240x^150+336x^151+72x^152+6x^154+6x^155+2x^156+12x^157+2x^162

The gray image is a code over GF(3) with n=639, k=9 and d=408.
This code was found by Heurico 1.16 in 1 seconds.