# A193649 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 5
4 15
5 33
6 91
7 221
8 583
9 1465
10 3795
11 9653
12 24831
13 63441
14 162763
15 416525
16 1067575
17 2733673
18 7003971
19 17938661
20 45954543
21 117709185
22 301527355
23 772364093
24 1978473511