The generator matrix

 1  0  0  1  1  1  1  1  1  6  1  1  1  0  1  1  6  1  1  3  1  1  1  6  1  3  1  1  1  1  1  1  1  3  1  1  3  0  3  3  3  1  6  1  1  1  1  3  1  1  1  1  1  6  6  0  1  1  1  0  1  1  6  1  0  1  1  1  1  1  1  1  1  1  1  1  1  0  1  6  1
 0  1  0  6  1  7  8  0  2  1  6  7  5  1  1  3  0  4  6  1  1  2  3  1  8  1  4  2  7  5  3  0  8  1  6  2  3  1  1  6  1  0  1  7  5  8  3  1  1  5  4  7  4  1  1  1  3  6  7  1  0  1  1  6  1  3  0  3  0  7  4  4  4  1  0  6  8  1  2  1  3
 0  0  1  7  1  6  2  8  6  7  4  2  1  5  4  3  1  0  5  3  8  3  7  2  1  7  7  5  8  3  5  4  5  1  3  8  1  1  5  1  2  2  3  7  4  4  0  0  2  0  1  3  6  8  1  7  8  6  5  6  6  5  6  2  8  4  7  1  3  0  3  7  8  0  5  1  7  4  1  5  4

generates a code of length 81 over Z9 who´s minimum homogenous weight is 159.

Homogenous weight enumerator: w(x)=1x^0+330x^159+222x^162+90x^165+42x^168+12x^171+24x^177+6x^180+2x^189

The gray image is a code over GF(3) with n=243, k=6 and d=159.
This code was found by Heurico 1.16 in 0.325 seconds.