# A149889 (b-file synthesized from sequence entry) 0 1 1 2 2 5 3 14 4 45 5 153 6 548 7 2019 8 7605 9 29388 10 115571 11 460172 12 1860049 13 7599867 14 31298912 15 130183426 16 545493796 17 2298658623 18 9754411712 19 41617449285 20 178315326510 21 768003319937 22 3321490251318 23 14412632043743 24 62791261002627 25 274457598076597 26 1202860829073499 27 5288629250797523