The generator matrix

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

generates a code of length 23 over Z4[X]/(X^2+2,2X) who´s minimum homogenous weight is 18.

Homogenous weight enumerator: w(x)=1x^0+262x^18+300x^19+813x^20+680x^21+1480x^22+1068x^23+1543x^24+784x^25+750x^26+228x^27+227x^28+8x^29+36x^30+4x^31+8x^32

The gray image is a code over GF(2) with n=92, k=13 and d=36.
This code was found by Heurico 1.16 in 7.61 seconds.