Binary (55,21)-code with minimal distance 15

[1000000000000000000001001011010010001100001001001010101]
[0100000000000000000001101110111011001010001101101111111]
[0010000000000000000001111100001111101001001111111101010]
[0001000000000000000000111110000111110100100111111110101]
[0000100000000000000001010100010001110110011010110101111]
[0000010000000000000001100001011010110111000100010000010]
[0000001000000000000000110000101101011011100010001000001]
[0000000100000000000001010011000100100001111000001110101]
[0000000010000000000001100010110000011100110101001101111]
[0000000001000000000001111010001010000010010011101100010]
[0000000000100000000000111101000101000001001001110110001]
[0000000000010000000001010101110000101100101101110001101]
[0000000000001000000001100001101010011010011111110010011]
[0000000000000100000001111011100111000001000110110011100]
[0000000000000010000000111101110011100000100011011001110]
[0000000000000001000000011110111001110000010001101100111]
[0000000000000000100001000100001110110100000001111100110]
[0000000000000000010000100010000111011010000000111110011]
[0000000000000000001001011010010001100001001001010101100]
[0000000000000000000100101101001000110000100100101010110]
[0000000000000000000010010110100100011000010010010101011]