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  1  1  1  1  1  1  1  1  1  1  1
 0  9  0  0  0  0  0  9  0  0  9  9  9  9  9  9 18  9  9 18  9  0  0  0  9  0  9  9 18  0 18  0  9  0  9  0  0 18  0  9  9  0  0  0 18  9 18 18  9 18 18  9 18 18  0  9 18  0  9 18  0 18  9 18 18 18  0 18  9  0  9 18 18 18 18  0  9 18 18 18
 0  0  9  0  0  0  9  0  9  9 18 18 18 18  9  0  9  9  9 18  9 18 18 18  0 18 18  0  0  0 18  0 18  9  9  9 18  0  0  9  0  9 18 18  9 18  0  0  9  9  9  0 18 18  0 18  0 18  9  9  0  0 18  0  0  9 18  9  0  9  9  9 18  0  9  9  0 18 18 18
 0  0  0  9  0  9 18 18 18  0  9  0  9 18 18 18  9  0  9  0  9  9  9 18  0 18  0  9 18  0  9 18 18  9  0  9  0  0 18 18  9 18  0  9 18  0  0 18  9 18  9 18  0  9  9 18  9 18  0  0 18  0  9 18  9  0  0 18  9  9 18  9  9  9  0  0  0  0 18 18
 0  0  0  0  9 18  9  9 18  9 18  0  0 18 18  0 18  9  9  0 18  0 18 18  9  9 18  0  9 18  0  0  0  9 18 18 18  9  9  9  9  0  0  9 18  9  0 18  0  9  0 18  9 18  9  9  0  0  0  9 18 18  9  0 18 18  9  0 18  0  0  9  9  9  0 18 18 18  0  9

generates a code of length 80 over Z27 who´s minimum homogenous weight is 159.

Homogenous weight enumerator: w(x)=1x^0+160x^159+1944x^160+80x^162+2x^240

The gray image is a code over GF(3) with n=720, k=7 and d=477.
This code was found by Heurico 1.16 in 0.248 seconds.