n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 3 |
3 | 5 |
4 | 10 |
5 | 22 |
6 | 57 |
7 | 165 |
8 | 534 |
9 | 1819 |
10 | 6474 |
11 | 23547 |
12 | 87147 |
13 | 325738 |
14 | 1227709 |
15 | 4654285 |
16 | 17733540 |
17 | 67841449 |
18 | 260463501 |
19 | 1003087733 |
20 | 3873759683 |
21 | 14996820361 |
22 | 58188678049 |
23 | 226235685777 |
24 | 881235386180 |
25 | 3438462430944 |
26 | 13437551253019 |
[1,2,3,5,10,22,57,165,534,1819,6474,23547,87147, 325738,1227709,4654285,17733540,67841449, 260463501,1003087733,3873759683,14996820361, 58188678049,226235685777,881235386180, 3438462430944,13437551253019] |