The generator matrix

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

generates a code of length 37 over Z4[X]/(X^2+2) who´s minimum homogenous weight is 36.

Homogenous weight enumerator: w(x)=1x^0+3x^36+40x^37+3x^38+16x^39+1x^42

The gray image is a code over GF(2) with n=296, k=6 and d=144.
This code was found by Heurico 1.16 in 0.016 seconds.