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  6  6  X  0  X
 0  6  3  0  6  3  0  6  3  0  6  3  0  6  3  6  0  3  6  3  0  6  3  0  6  3  0  6  6

generates a code of length 29 over Z9[X]/(X^2+3,3X) 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 0.00463 seconds.