The generator matrix

 1  0  1  1  1 X+2  1  1  2  1  1  2  1  1 X+2  X  1  1  1  2  1 X+2  1  1  1  1  1  1  1  1  1  1  1  1  1  X  1  1  1  1  0  1  1  1  1  1  1  1  0  2  1
 0  1  1 X+2 X+1  1  3  2  1  2  1  1  X X+3  1  1  2 X+3 X+2  1 X+2  1  1  1 X+3 X+3 X+1  3 X+1  3 X+1  3  0  0 X+2  2  X  0  0  X  0  X  2 X+2  0  X  0 X+2  1  1 X+1
 0  0  X  0  2  0  2  X  X X+2 X+2 X+2  X  X  0  X  0  2 X+2  0  0 X+2  2 X+2 X+2  X  0  2 X+2  X  2  0  0 X+2  X  2  2  2  X X+2  X  0 X+2  X  2  0  X  2  2 X+2  X
 0  0  0  2  2  2  0  2  2  0  2  0  0  2  0  0  2  2  2  2  0  2  0  0  2  0  0  2  0  2  0  2  2  0  2  2  0  2  2  0  2  0  2  0  0  2  0  2  2  2  2

generates a code of length 51 over Z4[X]/(X^2+2,2X) who´s minimum homogenous weight is 48.

Homogenous weight enumerator: w(x)=1x^0+95x^48+60x^49+122x^50+20x^51+78x^52+36x^53+61x^54+12x^55+17x^56+4x^58+4x^62+1x^64+1x^78

The gray image is a code over GF(2) with n=204, k=9 and d=96.
This code was found by Heurico 1.16 in 0.0712 seconds.