The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1
 0  3  0  0  0  0  3  6  6  0  0  3  3  3  3  3  3  3  0  6  0  6  0  6  0  3  6  3  6  6  0  0  6  3  0  3  3  3  3  0  0  0  3  0  3  0  0  3  3  6  6  0  3  6  6  6  3  6  0  6  3  6  0  6  0  3  6  6  0
 0  0  3  0  0  3  6  0  6  0  3  3  6  6  0  3  0  3  3  3  3  0  0  6  6  3  3  6  0  6  0  3  3  0  6  6  0  3  0  6  6  6  3  6  6  0  0  6  3  0  3  3  3  0  6  0  6  6  6  3  3  3  6  6  6  0  6  6  3
 0  0  0  3  0  6  6  3  0  3  3  0  0  3  6  3  3  6  6  0  0  6  6  6  6  6  3  3  0  3  6  3  6  6  3  6  3  0  0  0  3  0  3  6  0  0  3  3  0  6  0  3  3  0  6  6  6  0  0  6  6  3  6  3  3  6  3  6  0
 0  0  0  0  3  6  6  6  6  6  0  6  0  0  6  6  0  3  0  0  6  6  3  6  3  6  0  6  0  0  6  6  3  0  0  0  6  0  3  3  6  6  3  0  3  6  3  3  3  0  6  3  0  3  0  3  3  3  0  6  0  6  6  6  3  3  3  3  3

generates a code of length 69 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 132.

Homogenous weight enumerator: w(x)=1x^0+38x^132+70x^135+1998x^138+32x^141+26x^144+18x^147+2x^150+2x^207

The gray image is a code over GF(3) with n=621, k=7 and d=396.
This code was found by Heurico 1.16 in 0.157 seconds.