# A309172 (b-file synthesized from sequence entry) 0 1 1 1 2 3 3 7 4 15 5 31 6 64 7 128 8 254 9 496 10 961 11 1844 12 3516 13 6662 14 12564 15 23593 16 44153 17 82385 18 153351 19 284857 20 528235 21 978148 22 1809120 23 3342722 24 6171318 25 11385733 26 20994298 27 38693809 28 71288111 29 131297855 30 241761727 31 445068646 32 819205061 33 1507641487 34 2774307387 35 5104712633