All distinct 0-1 matrices of C5 12 of them, 12 = 5!/|aut(C5)| = 120/10 10-bit top-bottom left-right encodings of upper triangle lexicographically minimal 0011011100 01100 01100 10010 10001 10001 10010 01001 00101 00110 1100100011 01010 00110 00110 00101 00011 11000 10001 10001 11000 01010 0111000101 01100 00011 00011 00110 00101 01001 01010 11000 10100 10100 0011101010 11000 0011011100 minlex 01010 01010 10100 10001 01001 00011 10001 10100 00110 1011000011 01100 00101 00101 00110 00011 11000 10010 01001 01100 10010 11000 01001 01001 10100 10010 01010 00011 00101 01100 10010 10100