The generator matrix

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

generates a code of length 71 over Z9 who´s minimum homogenous weight is 138.

Homogenous weight enumerator: w(x)=1x^0+86x^138+132x^139+102x^140+82x^141+120x^142+24x^143+28x^144+36x^145+24x^146+16x^147+18x^148+12x^149+6x^150+12x^151+10x^153+6x^154+2x^159+12x^162

The gray image is a code over GF(3) with n=213, k=6 and d=138.
This code was found by Heurico 1.16 in 0.0454 seconds.