The generator matrix

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

generates a code of length 56 over Z9 who´s minimum homogenous weight is 102.

Homogenous weight enumerator: w(x)=1x^0+170x^102+114x^103+240x^104+544x^105+258x^106+234x^107+774x^108+288x^109+264x^110+580x^111+258x^112+234x^113+498x^114+204x^115+204x^116+474x^117+132x^118+162x^119+348x^120+150x^121+66x^122+158x^123+42x^124+30x^125+92x^126+12x^127+24x^128+6x^132

The gray image is a code over GF(3) with n=168, k=8 and d=102.
This code was found by Heurico 1.13 in 0.234 seconds.