The generator matrix

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

generates a code of length 90 over Z9 who´s minimum homogenous weight is 171.

Homogenous weight enumerator: w(x)=1x^0+136x^171+48x^172+108x^173+258x^174+204x^175+90x^176+234x^177+114x^179+142x^180+66x^181+48x^182+126x^183+78x^184+36x^185+114x^186+30x^188+84x^189+48x^190+42x^191+42x^192+42x^193+18x^194+60x^195+4x^198+4x^201+4x^204+2x^207+2x^210+2x^213

The gray image is a code over GF(3) with n=270, k=7 and d=171.
This code was found by Heurico 1.16 in 0.212 seconds.