# A115798 (b-file synthesized from sequence entry) 0 0 1 1 2 10 3 100 4 1000 5 1011 6 10000 7 10001 8 10110 9 10111 10 100000 11 100001 12 100010 13 101011 14 101100 15 101101 16 101110 17 1000000 18 1000001 19 1000010 20 1000100 21 1010110 22 1010111 23 1011000 24 1011010 25 1011100 26 1011101 27 10000000 28 10000001 29 10000010