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

generates a code of length 49 over Z9[X]/(X^2+3,3X) who´s minimum homogenous weight is 81.

Homogenous weight enumerator: w(x)=1x^0+66x^81+168x^84+218x^87+212x^90+162x^92+188x^93+972x^95+244x^96+15066x^98+218x^99+1296x^101+188x^102+210x^105+168x^108+132x^111+76x^114+62x^117+24x^120+8x^123+2x^126+2x^138

The gray image is a code over GF(3) with n=441, k=9 and d=243.
This code was found by Heurico 1.16 in 2.39 seconds.