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

generates a code of length 58 over Z4[X]/(X^2+2,2X) who´s minimum homogenous weight is 57.

Homogenous weight enumerator: w(x)=1x^0+24x^57+76x^58+12x^60+8x^61+4x^62+3x^64

The gray image is a code over GF(2) with n=232, k=7 and d=114.
This code was found by Heurico 1.16 in 16.3 seconds.