# A091621 (b-file synthesized from sequence entry) 1 1 2 3 3 7 4 18 5 43 6 102 7 241 8 563 9 1293 10 2960 11 6722 12 15140 13 33919 14 75576 15 167490 16 369556 17 811953 18 1776993 19 3875220 20 8423004 21 18251468 22 39435686 23 84980633 24 182669118 25 391736024 26 838237802 27 1789955529 28 3814790598 29 8115210879