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

generates a code of length 84 over Z9 who´s minimum homogenous weight is 164.

Homogenous weight enumerator: w(x)=1x^0+72x^164+92x^165+108x^166+162x^167+82x^168+24x^169+36x^170+54x^171+24x^172+42x^173+6x^179+2x^183+6x^184+6x^185+6x^186+2x^189+2x^192+2x^195

The gray image is a code over GF(3) with n=252, k=6 and d=164.
This code was found by Heurico 1.13 in 0.094 seconds.