Best binary codes

Binary (56,20)-code with minimal distance 16

[10000000000000000000110111011101100101000110110111111100]
[01000000000000000000011011101110110010100011011011111110]
[00100000000000000000111010101010111100010111011010000010]
[00010000000000000000101010001000111011001101011010111100]
[00001000000000000000010101000100011101100110101101011110]
[00000100000000000000111101111111101011110101100001010010]
[00000010000000000000101001100010010000111100000111010100]
[00000001000000000000010100110001001000011110000011101010]
[00000000100000000000111101000101000001001001110110001000]
[00000000010000000000011110100010100000100100111011000100]
[00000000001000000000001111010001010000010010011101100010]
[00000000000100000000110000110101001101001111111001001100]
[00000000000010000000011000011010100110100111111100100110]
[00000000000001000000111011010000110110010101001001101110]
[00000000000000100000101010110101111110001100010011001010]
[00000000000000010000100010000111011010000000111110011000]
[00000000000000001000010001000011101101000000011111001100]
[00000000000000000100001000100001110110100000001111100110]
[00000000000000000010110011001101011110010110110000001110]
[00000000000000000001101110111011001010001101101111111010]