# A103175 (b-file synthesized from sequence entry) 0 0 1 1 2 100 3 1100 4 100000 5 1010000 6 11000000 7 111000000 8 10000000000 9 100100000000 10 1010000000000 11 10110000000000 12 110000000000000 13 1101000000000000 14 11100000000000000 15 111100000000000000