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  X  X  X  X  X  X  X  X  X  X  X  X  X  2  X  X  X  1  1  1  1  1  1
 0 2X+2  0  2  0  0  2 2X+2  0  0  2 2X+2  0  0  2 2X+2 2X 2X 2X+2  2 2X 2X 2X+2  2 2X 2X 2X+2  2 2X 2X 2X+2  2 2X  2 2X+2  0 2X+2 2X+2 2X  2 2X+2  0 2X+2 2X+2  0  0  0 2X 2X  0  0 2X+2 2X  0 2X+2
 0  0 2X+2  2  0 2X+2  2  0 2X  2 2X+2 2X 2X  2 2X+2 2X 2X  2 2X+2 2X 2X  2 2X+2 2X  0 2X+2  2  0  0 2X+2  2  0  2  2  0 2X+2  2 2X  2  2  0 2X+2  2 2X  0  0 2X 2X  0  0 2X  0  2  2  0
 0  0  0 2X 2X 2X  0 2X 2X 2X 2X 2X  0  0  0  0  0  0  0  0 2X 2X 2X 2X 2X 2X 2X 2X  0  0  0  0  0  0 2X  0  0 2X 2X 2X  0 2X 2X  0 2X 2X 2X  0 2X  0  0  0  0 2X  0

generates a code of length 55 over Z4[X]/(X^2+2) who´s minimum homogenous weight is 52.

Homogenous weight enumerator: w(x)=1x^0+51x^52+108x^54+256x^55+47x^56+12x^58+28x^60+6x^62+2x^70+1x^76

The gray image is a code over GF(2) with n=440, k=9 and d=208.
This code was found by Heurico 1.16 in 0.14 seconds.