The generator matrix

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

generates a code of length 37 over Z4[X]/(X^2+2,2X) who´s minimum homogenous weight is 30.

Homogenous weight enumerator: w(x)=1x^0+75x^30+280x^32+651x^34+1050x^36+1066x^38+646x^40+231x^42+60x^44+19x^46+9x^48+5x^50+2x^52+1x^58

The gray image is a code over GF(2) with n=148, k=12 and d=60.
This code was found by Heurico 1.16 in 0.563 seconds.