# A024740 (b-file synthesized from sequence entry)
1 1
2 2
3 4
4 10
5 24
6 56
7 132
8 344
9 880
10 2216
11 5568
12 14912
13 39248
14 101952
15 265216
16 718240
17 1925376
18 5115008
19 13574976
20 37150464
21 100744448
22 271103616
23 729513984
24 2008900096
25 5495163136
26 14942424576
27 40595259392
28 112428786176
29 309465434112
30 847395311616