The generator matrix

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

generates a code of length 72 over Z9 who´s minimum homogenous weight is 139.

Homogenous weight enumerator: w(x)=1x^0+54x^139+144x^141+174x^142+24x^144+192x^145+18x^148+70x^150+42x^151+6x^154+2x^177+2x^189

The gray image is a code over GF(3) with n=216, k=6 and d=139.
This code was found by Heurico 1.16 in 0.0611 seconds.