The generator matrix

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

generates a code of length 36 over F9[X]/(X^2) who´s minimum homogenous weight is 261.

Homogenous weight enumerator: w(x)=1x^0+560x^261+288x^264+864x^265+1368x^266+1072x^270+648x^272+6912x^273+9072x^274+8856x^275+1184x^279+10368x^281+55296x^282+49248x^283+36504x^284+1128x^288+41472x^290+147456x^291+98280x^292+58248x^293+1024x^297+880x^306+592x^315+120x^324

The gray image is a linear code over GF(9) with n=324, k=6 and d=261.
This code was found by Heurico 1.16 in 18.3 seconds.