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
 0  3  0  0  0  0  3  6  6  0  0  3  3  3  3  3  3  3  0  6  0  6  0  6  0  3  6  3  6  6  0  0  6  3  0  3  3  3  3  0  0  0  3  0  3  0  0  3  3  6  6  0  3  6  6  6  3  6  6  6  0  6  0  6  6  3  0  3  0  3  6  6  0  0
 0  0  3  0  0  3  6  0  6  0  3  3  6  6  0  3  0  3  3  3  3  0  0  6  6  3  3  6  0  6  0  3  3  0  6  6  0  3  0  6  6  6  3  6  6  0  0  6  3  0  3  3  3  0  6  0  6  6  6  0  0  3  6  0  3  0  3  3  6  0  3  3  0  0
 0  0  0  3  0  6  6  3  0  3  3  0  0  3  6  3  3  6  6  0  0  6  6  6  6  6  3  3  0  3  6  3  6  6  3  6  3  0  0  0  3  0  3  6  0  0  3  3  0  6  0  3  3  0  6  6  6  0  3  0  6  3  3  3  6  3  0  6  0  0  3  0  0  0
 0  0  0  0  3  6  6  6  6  6  0  6  0  0  6  6  0  3  0  0  6  6  3  6  3  6  0  6  0  0  6  6  3  0  0  0  6  0  3  3  6  6  3  0  3  6  3  3  3  0  6  3  0  3  0  3  3  3  3  6  0  3  3  3  6  3  3  0  0  6  6  3  6  6

generates a code of length 74 over Z9 who´s minimum homogenous weight is 141.

Homogenous weight enumerator: w(x)=1x^0+46x^141+24x^144+66x^147+486x^148+60x^150+42x^156+2x^162+2x^222

The gray image is a code over GF(3) with n=222, k=6 and d=141.
This code was found by Heurico 1.16 in 0.065 seconds.