11111111110000000000 11110000001111110000 11001100001100001111 00110011000011001111 00001100110011111100 00000011111100110011 11111111110000000000 11110000001111110000 11001100001100001111 00110011000011001111 00001010111010111100 00000101110101110011 11111111110000000000 11110000001111110000 11001100001100001111 00101011000011101110 00010010111010011101 00000101110101110011 11111111110000000000 11110000001111110000 10001110001110001110 01001001101001101101 00100101010101011011 00010010110010110111 Number of 6-3-4 designs = 4 Number of designs with |Aut|= 24 is 2 Number of designs with |Aut|= 60 is 1 Number of designs with |Aut|= 720 is 1