# A151514 (b-file synthesized from sequence entry) 1 1 2 1 3 2 4 5 5 10 6 24 7 53 8 126 9 289 10 686 11 1604 12 3792 13 8925 14 21051 15 49638 16 116858 17 275480 18 647573 19 1525113 20 3580673 21 8423334 22 19755938 23 46422915 24 108783480 25 255359883 26 597932342 27 1402308318 28 3281352516 29 7689369625 30 17982241557 31 42108302007 32 98422076879 33 230322745835