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

generates a code of length 48 over Z9 who´s minimum homogenous weight is 84.

Homogenous weight enumerator: w(x)=1x^0+62x^84+92x^87+126x^90+110x^93+486x^94+60x^96+972x^97+70x^99+50x^102+42x^105+36x^108+42x^111+20x^114+10x^117+6x^120+2x^141

The gray image is a code over GF(3) with n=144, k=7 and d=84.
This code was found by Heurico 1.16 in 0.15 seconds.