The generator matrix
1 1 1 1 1
0 X^2+2 0 X^2 0
0 0 X^2+2 X^2 0
0 0 0 2 0
0 0 0 0 2
generates a code of length 5 over Z4[X]/(X^3+2,2X) who´s minimum homogenous weight is 2.
Homogenous weight enumerator: w(x)=1x^0+17x^2+24x^3+46x^4+848x^5+46x^6+24x^7+17x^8+1x^10
The gray image is a code over GF(2) with n=40, k=10 and d=8.
This code was found by Heurico 1.16 in 3.81e-009 seconds.