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  3  1  1  1  1  1  1  3  1  1  1  1  1  1
 0  3  0  0  0  0  3  6  6  0  0  3  3  3  3  3  3  3  0  6  0  6  6  6  6  3  6  0  3  6  3  0  3  3  0  3  3  0  3  3  3  6  0  0  0  0  6
 0  0  3  0  0  3  6  0  6  0  3  3  6  6  0  3  0  3  3  3  3  3  6  6  3  6  3  6  0  6  6  6  3  3  0  6  6  3  0  0  0  0  3  6  6  6  3
 0  0  0  3  0  6  6  3  0  3  3  0  0  3  6  3  3  6  6  0  0  3  3  6  0  3  3  3  0  0  0  6  3  6  3  6  0  3  6  0  3  3  3  0  0  6  6
 0  0  0  0  3  6  6  6  6  6  0  6  0  0  6  6  0  3  0  0  6  6  0  6  3  6  0  6  6  0  3  0  3  6  3  0  6  3  3  3  3  0  6  0  3  6  3

generates a code of length 47 over Z9 who´s minimum homogenous weight is 90.

Homogenous weight enumerator: w(x)=1x^0+222x^90+216x^93+216x^96+36x^99+36x^108+2x^135

The gray image is a code over GF(3) with n=141, k=6 and d=90.
This code was found by Heurico 1.16 in 66.1 seconds.