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

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

Homogenous weight enumerator: w(x)=1x^0+54x^52+140x^54+128x^55+137x^56+44x^58+7x^60+1x^108

The gray image is a code over GF(2) with n=220, k=9 and d=104.
This code was found by Heurico 1.16 in 0.0774 seconds.