Binary (48,40)-code with minimal distance 4

[100000000000000000000000000000000000000011111110]
[010000000000000000000000000000000000000011110001]
[001000000000000000000000000000000000000011101001]
[000100000000000000000000000000000000000011100101]
[000010000000000000000000000000000000000011100011]
[000001000000000000000000000000000000000011100000]
[000000100000000000000000000000000000000010111111]
[000000010000000000000000000000000000000010110000]
[000000001000000000000000000000000000000010101000]
[000000000100000000000000000000000000000010100100]
[000000000010000000000000000000000000000010100010]
[000000000001000000000000000000000000000010100001]
[000000000000100000000000000000000000000011011111]
[000000000000010000000000000000000000000011010000]
[000000000000001000000000000000000000000011001000]
[000000000000000100000000000000000000000011000100]
[000000000000000010000000000000000000000011000010]
[000000000000000001000000000000000000000011000001]
[000000000000000000100000000000000000000010011110]
[000000000000000000010000000000000000000010010001]
[000000000000000000001000000000000000000010001001]
[000000000000000000000100000000000000000010000101]
[000000000000000000000010000000000000000010000011]
[000000000000000000000001000000000000000001111111]
[000000000000000000000000100000000000000001110000]
[000000000000000000000000010000000000000001101000]
[000000000000000000000000001000000000000001100100]
[000000000000000000000000000100000000000001100010]
[000000000000000000000000000010000000000001100001]
[000000000000000000000000000001000000000000111110]
[000000000000000000000000000000100000000000110001]
[000000000000000000000000000000010000000000101001]
[000000000000000000000000000000001000000000100101]
[000000000000000000000000000000000100000000100011]
[000000000000000000000000000000000010000001011110]
[000000000000000000000000000000000001000001010001]
[000000000000000000000000000000000000100001001001]
[000000000000000000000000000000000000010001000101]
[000000000000000000000000000000000000001001000011]
[000000000000000000000000000000000000000100011111]