Binary (40,7)-code with minimal distance 18 

[1000000001101110101010001010110011010011]
[0100000010000100001111111000000111111110]
[0010000111010111000110101111010101001100]
[0001000100111110011111000100000010111001]
[0000100111110110011111111011111010100111]
[0000010000110101101010110011001100110011]
[0000001000111111111001010001010101001100]