# A251710 (b-file synthesized from sequence entry) 0 0 1 0 2 0 3 0 4 0 5 1 6 0 7 1 8 2 9 4 10 8 11 16 12 32 13 63 14 126 15 251 16 500 17 996 18 1984 19 3952 20 7872 21 15681 22 31236 23 62221 24 123942 25 246888 26 491792 27 979632 28 1951392 29 3887103 30 7742970 31 15423719 32 30723496 33 61200104 34 121908416 35 242837200 36 483723008 37 963558913 38 1919374856 39 3823325993