The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  3  1  1  1  1  1  3  1  1  3  1  3  1  1  3  3  1  1  1  1  1  3  3  0  1  1  1  1  1  1  1  3  0  1  0  1  3  3  1  1  1  1  3  1  1  3  1  1  1  1  1
 0  3  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  6  3  6  6  6  3  3  3  6  6  3  3  6  3  3  0  3  6  0  3  0  6  6  3  0  6  6  3  3  0  0  6  6  6  0  3  0  0  3  3  3  3  6  0  0  6  6  3  3  6  0  6  3  6  6  0  3  3  0  3  0  3  6  0  6  0  6  6  0  3  0  0  6  6  3  6  3  6  0  0
 0  0  3  0  0  0  0  0  0  0  0  0  0  0  3  3  6  6  6  0  3  6  3  3  3  6  6  0  3  0  3  3  0  6  3  3  3  0  0  6  6  0  3  3  6  0  6  3  3  6  0  0  6  3  0  0  6  3  3  0  3  3  3  3  0  3  3  0  0  3  3  6  3  3  3  6  6  6  6  6  0  3  0  3  3  0  6  3  6  0  3  3  3  0  6  6  0  0  0
 0  0  0  3  0  0  0  0  0  0  0  0  3  3  6  3  0  3  6  3  6  6  6  3  0  3  0  0  0  3  6  3  6  6  3  0  0  6  6  3  0  0  3  3  6  6  0  3  0  3  0  3  0  6  3  6  0  0  6  0  6  6  3  0  3  6  6  3  0  3  0  0  3  3  6  3  3  3  3  6  3  3  3  0  3  6  3  6  0  0  6  3  6  3  6  0  3  6  0
 0  0  0  0  3  0  0  0  0  3  6  6  6  6  6  3  0  3  6  3  3  3  0  6  6  3  3  3  3  6  0  6  3  6  6  3  0  3  0  0  3  6  0  6  3  6  3  3  0  3  0  0  3  6  3  6  6  0  6  3  0  0  3  3  6  6  3  6  3  0  0  0  6  3  3  3  6  3  3  0  0  3  0  6  3  0  6  0  0  3  0  6  6  3  3  0  6  3  0
 0  0  0  0  0  3  0  0  3  6  0  6  6  3  3  3  6  3  3  3  0  6  0  0  6  6  6  3  6  3  0  6  0  0  6  0  0  0  6  3  0  6  6  0  6  0  6  6  6  0  3  3  0  3  3  6  6  0  0  0  3  6  3  6  0  6  3  6  0  6  6  0  6  3  3  6  0  6  6  0  3  3  3  6  6  3  3  3  6  3  6  3  0  6  6  0  0  6  0
 0  0  0  0  0  0  3  0  6  6  3  0  6  6  3  6  6  3  6  0  0  0  6  6  3  6  3  0  6  3  3  0  6  0  3  6  0  6  0  3  0  3  3  0  0  0  0  3  6  3  0  3  6  3  6  0  6  6  6  3  0  0  0  6  0  6  3  6  6  6  6  6  3  6  6  0  6  6  3  3  6  0  6  6  3  3  6  6  6  6  3  3  6  0  3  3  6  0  0
 0  0  0  0  0  0  0  3  6  6  6  6  3  0  3  3  0  0  3  0  6  3  3  0  0  3  6  6  0  6  0  6  0  6  6  0  3  6  3  0  6  3  3  6  6  6  0  3  3  0  0  6  3  0  3  6  3  6  0  3  0  6  6  6  3  3  3  6  0  3  6  3  6  6  0  3  6  3  0  3  0  3  6  6  0  6  3  6  0  0  6  6  6  6  6  3  6  6  0

generates a code of length 99 over Z9 who´s minimum homogenous weight is 171.

Homogenous weight enumerator: w(x)=1x^0+36x^171+154x^174+306x^177+370x^180+48x^181+410x^183+150x^184+470x^186+540x^187+494x^189+960x^190+440x^192+1668x^193+474x^195+2502x^196+430x^198+2814x^199+510x^201+2280x^202+460x^204+1440x^205+428x^207+552x^208+334x^210+114x^211+344x^213+54x^214+304x^216+184x^219+154x^222+98x^225+68x^228+56x^231+24x^234+6x^237+2x^240+2x^243+2x^249

The gray image is a code over GF(3) with n=297, k=9 and d=171.
This code was found by Heurico 1.16 in 20.2 seconds.