The generator matrix

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

generates a code of length 15 over Z4[X]/(X^2+2,2X) who´s minimum homogenous weight is 9.

Homogenous weight enumerator: w(x)=1x^0+300x^9+1122x^10+2964x^11+8437x^12+14636x^13+25113x^14+25636x^15+25538x^16+14628x^17+8345x^18+3004x^19+1031x^20+260x^21+43x^22+12x^23+1x^24+1x^26

The gray image is a code over GF(2) with n=60, k=17 and d=18.
This code was found by Heurico 1.13 in 37.5 seconds.