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

generates a code of length 91 over Z27 who´s minimum homogenous weight is 181.

Homogenous weight enumerator: w(x)=1x^0+24x^181+180x^182+12x^184+18x^185+2x^186+2x^195+2x^201+2x^210

The gray image is a code over GF(3) with n=819, k=5 and d=543.
This code was found by Heurico 1.16 in 0.32 seconds.