The generator matrix
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 X 1 X 1 1 1 X X 1 3 3 X 0 X
0 3 6 0 3 6 0 3 6 0 3 6 0 3 6 3 0 6 3 6 0 3 6 0 3 6 0 3 3
generates a code of length 29 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 58.
Homogenous weight enumerator: w(x)=1x^0+66x^58+4x^60+6x^61+4x^66
The gray image is a code over GF(3) with n=261, k=4 and d=174.
This code was found by Heurico 1.16 in 0.00484 seconds.