The generator matrix

 1  0  0  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
 0  1  0 a^7*X+1  a a^2 a^7*X+2 a^7*X+a^7  X a^7*X+a a^6 a^6*X+1 a^7*X+a^2 a^7*X+a^3 a^7 X+a^2 a^7*X+a^5  2 a^3 X+a^6 a^5*X+2 a^5*X+1 a^2*X+a^7 a^2*X+a a^6*X+a^3 a^2*X+1 a^7*X a*X+a a^6*X
 0  0  1 a^7*X+a^7  a a^6 a^7*X+a^5 a^7*X+2 a^7*X+a^3 a^7*X+a^2 X+a^6 a^3 a^6*X+a^7 a^6*X+a^2 X+a a^5*X+2 a^3*X+1 a*X+1 a^6*X+a^5 a*X+a^2 a^6*X+a^3 a*X+a^5 a^5*X a^5*X+a^7  2 2*X+1 a^6*X+a  X 2*X+a^7

generates a code of length 29 over F9[X]/(X^2) who´s minimum homogenous weight is 216.

Homogenous weight enumerator: w(x)=1x^0+728x^216+3672x^217+17712x^218+7200x^219+4536x^224+10696x^225+25704x^226+70848x^227+18000x^228+40824x^232+36288x^233+41608x^234+69768x^235+150552x^236+33120x^237+72x^243+56x^252+56x^261

The gray image is a linear code over GF(9) with n=261, k=6 and d=216.
This code was found by Heurico 1.16 in 11.1 seconds.