n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 21 |
4 | 89 |
5 | 377 |
6 | 1597 |
7 | 6765 |
8 | 28657 |
9 | 121393 |
10 | 514229 |
11 | 2178309 |
12 | 9227465 |
13 | 39088169 |
14 | 165580141 |
15 | 701408733 |
16 | 2971215073 |
17 | 12586269025 |
18 | 53316291173 |
19 | 225851433717 |
20 | 956722026041 |
21 | 4052739537881 |
22 | 17167680177565 |
23 | 72723460248141 |
24 | 308061521170129 |
25 | 1304969544928657 |
26 | 5527939700884757 |
[1,1,5,21,89,377,1597,6765,28657,121393,514229, 2178309,9227465,39088169,165580141,701408733, 2971215073,12586269025,53316291173,225851433717, 956722026041,4052739537881,17167680177565, 72723460248141,308061521170129,1304969544928657, 5527939700884757] |