Binary (42,7)-code with minimal distance 19 

[100000010100011001110001101111001110011100]
[010000000111100111111111111111000000000000]
[001000001100010101001100101010010111110101]
[000100011111100100111110010010110011001111]
[000010011010001111110100110100010101010110]
[000001000100110111100111100000111100001111]
[000000100001001000011111111100000011111111]