# A150892 (b-file synthesized from sequence entry) 0 1 1 2 2 8 3 34 4 153 5 704 6 3315 7 15792 8 75956 9 367912 10 1791757 11 8761636 12 42987377 13 211475259 14 1042612240 15 5149530008 16 25472289092 17 126159248997 18 625514850291 19 3104248839730 20 15417720543162 21 76627056718629 22 381069298652147 23 1896064966438921 24 9438486217346072 25 47003251263464404 26 234158435724772449