Binary (31,20)-code with minimal distance 6
[1000000000000000000010011001001]
[0100000000000000000010010111011]
[0010000000000000000000111111001]
[0001000000000000000000001110101]
[0000100000000000000011110010011]
[0000010000000000000001011011101]
[0000001000000000000011000001011]
[0000000100000000000001100111101]
[0000000010000000000010101100111]
[0000000001000000000011110101111]
[0000000000100000000011111000101]
[0000000000010000000010010010101]
[0000000000001000000011011110001]
[0000000000000100000011101111011]
[0000000000000010000000100001111]
[0000000000000001000000011100011]
[0000000000000000100001110001001]
[0000000000000000010011100100001]
[0000000000000000001010111101010]
[0000000000000000000111010110110]