Binary (20,14)-code with minimal distance 4 

[10000000000000111111]
[01000000000000111000]
[00100000000000110100]
[00010000000000110010]
[00001000000000110001]
[00000100000000011110]
[00000010000000011001]
[00000001000000010101]
[00000000100000010011]
[00000000010000101110]
[00000000001000101001]
[00000000000100100101]
[00000000000010100011]
[00000000000001001111]