The generator matrix

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

generates a code of length 46 over Z9 who´s minimum homogenous weight is 81.

Homogenous weight enumerator: w(x)=1x^0+738x^81+1914x^84+2892x^87+3550x^90+3774x^93+3492x^96+2184x^99+954x^102+150x^105+32x^108+2x^117

The gray image is a code over GF(3) with n=138, k=9 and d=81.
This code was found by Heurico 1.16 in 4.24 seconds.