The generator matrix

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

generates a code of length 19 over Z4[X]/(X^2+2) who´s minimum homogenous weight is 15.

Homogenous weight enumerator: w(x)=1x^0+74x^15+250x^16+336x^17+857x^18+1102x^19+819x^20+344x^21+227x^22+54x^23+17x^24+8x^25+3x^26+2x^27+1x^28+1x^30

The gray image is a code over GF(2) with n=152, k=12 and d=60.
This code was found by Heurico 1.16 in 11.5 seconds.