The generator matrix

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

generates a code of length 91 over Z9 who´s minimum homogenous weight is 168.

Homogenous weight enumerator: w(x)=1x^0+260x^168+186x^169+282x^170+1002x^171+504x^172+576x^173+1260x^174+486x^175+612x^176+1422x^177+642x^178+606x^179+1402x^180+612x^181+522x^182+1446x^183+516x^184+468x^185+1392x^186+522x^187+504x^188+1208x^189+330x^190+378x^191+736x^192+264x^193+186x^194+478x^195+210x^196+144x^197+204x^198+60x^199+72x^200+84x^201+30x^202+12x^203+30x^204+6x^205+12x^206+8x^207+6x^208+2x^219

The gray image is a code over GF(3) with n=273, k=9 and d=168.
This code was found by Heurico 1.13 in 3.42 seconds.