n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 3 |
4 | 4 |
5 | 14 |
6 | 46 |
7 | 111 |
8 | 330 |
9 | 1614 |
10 | 7348 |
11 | 21340 |
12 | 98145 |
13 | 379405 |
14 | 2633085 |
15 | 14871033 |
16 | 57284558 |
17 | 278927415 |
18 | 1609313975 |
19 | 8289565670 |
20 | 74945364815 |
21 | 522977754235 |
22 | 2403799401259 |
23 | 14180489136597 |
24 | 83964652635668 |
25 | 623008803758260 |
26 | 3918144764978718 |
27 | 46950727351392315 |
[1,1,1,3,4,14,46,111,330,1614,7348,21340,98145, 379405,2633085,14871033,57284558,278927415, 1609313975,8289565670,74945364815,522977754235, 2403799401259,14180489136597,83964652635668, 623008803758260,3918144764978718, 46950727351392315] |