Binary (18,11)-code with minimal distance 4 

[100000011000000100]
[010000010100000100]
[001000010010000100]
[000100010001000100]
[000010010000100100]
[000001010000010100]
[000000110000001100]
[000000001001100100]
[000000000101010100]
[000000000011001100]
[000000000000111100]