The generator matrix
1 0 1 1 1 2 1
0 1 1 0 X+1 1 0
0 0 X 0 X 2 0
0 0 0 X X X+2 2
generates a code of length 7 over Z4[X]/(X^2+2,2X) who´s minimum homogenous weight is 4.
Homogenous weight enumerator: w(x)=1x^0+42x^4+64x^5+213x^6+384x^7+213x^8+64x^9+42x^10+1x^14
The gray image is a code over GF(2) with n=28, k=10 and d=8.
This code was found by Heurico 1.16 in 0.00106 seconds.