The generator matrix

 1  1
 0 2X+7

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

Homogenous weight enumerator: w(x)=1x^0+48x^2+4x^3+576x^4+96x^5+4x^6

The gray image is a code over GF(3) with n=18, k=6 and d=6.
This code was found by Heurico 1.16 in 1.88e-005 seconds.