Binary (21,16)-code with minimal distance 3

[100000000000000011100]
[010000000000000010111]
[001000000000000010110]
[000100000000000011011]
[000010000000000011010]
[000001000000000010010]
[000000100000000011001]
[000000010000000010101]
[000000001000000010011]
[000000000100000001110]
[000000000010000001101]
[000000000001000000110]
[000000000000100000111]
[000000000000010001010]
[000000000000001001011]
[000000000000000100011]