n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 13 |
5 | 35 |
6 | 104 |
7 | 325 |
8 | 1001 |
9 | 3349 |
10 | 11096 |
11 | 38054 |
12 | 131934 |
13 | 465776 |
14 | 1662856 |
15 | 5991259 |
16 | 21938339 |
17 | 80418334 |
18 | 299671530 |
19 | 1117327758 |
20 | 4216093209 |
21 | 15951410354 |
22 | 60807769952 |
23 | 232918198206 |
24 | 895690678547 |
25 | 3466333766517 |
26 | 13437818727365 |
27 | 52436893612328 |
28 | 204843782982417 |
29 | 804691347470813 |
30 | 3165995361821470 |
[1,1,2,5,13,35,104,325,1001,3349,11096,38054, 131934,465776,1662856,5991259,21938339,80418334, 299671530,1117327758,4216093209,15951410354, 60807769952,232918198206,895690678547, 3466333766517,13437818727365,52436893612328, 204843782982417,804691347470813,3165995361821470] |