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  3  3  1  0  1  1  1  3  3  9  1  1  1  1  1  3  3 18  1  1  1  1  1  1  1  1  1  3  3  3  3  3  3  3  3  3  0  9 18  1  1  1  1  1  1
 0  3 24  9 21  6 18 12 15  0 21 24  9 12  6 18  3 15  0 21 24  9 12  6 18  3 15  0 21 24  9 12  6 18  3 15 21 24  0  3 21 24  9 12  6  3 12  6 18  3 15  3 15  3  0  9 18 21 12  3 24  6 15  0  9 18 21 12 24  6  3 15  3  3  3  0  9 18  0  9 18

generates a code of length 81 over Z27 who´s minimum homogenous weight is 162.

Homogenous weight enumerator: w(x)=1x^0+218x^162+18x^165+6x^180

The gray image is a code over GF(3) with n=729, k=5 and d=486.
This code was found by Heurico 1.16 in 0.203 seconds.