The generator matrix

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

generates a code of length 37 over Z4[X]/(X^2+2,2X) who´s minimum homogenous weight is 34.

Homogenous weight enumerator: w(x)=1x^0+18x^34+108x^36+108x^38+18x^40+2x^42+1x^64

The gray image is a code over GF(2) with n=148, k=8 and d=68.
This code was found by Heurico 1.16 in 0.0214 seconds.