The generator matrix

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

generates a code of length 11 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 18.

Homogenous weight enumerator: w(x)=1x^0+214x^18+150x^19+870x^20+530x^21+2292x^22+1716x^23+588x^24+150x^25+6x^26+40x^27+4x^30

The gray image is a code over GF(3) with n=99, k=8 and d=54.
This code was found by Heurico 1.16 in 0.0141 seconds.