The generator matrix

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

generates a code of length 30 over Z4[X]/(X^2+2,2X) who´s minimum homogenous weight is 24.

Homogenous weight enumerator: w(x)=1x^0+126x^24+294x^25+497x^26+622x^27+1040x^28+842x^29+1313x^30+958x^31+1005x^32+634x^33+493x^34+170x^35+100x^36+54x^37+31x^38+10x^39+2x^42

The gray image is a code over GF(2) with n=120, k=13 and d=48.
This code was found by Heurico 1.16 in 1.18 seconds.