n | a(n) |
---|---|
0 | 1 |
1 | 5 |
2 | 18 |
3 | 62 |
4 | 214 |
5 | 750 |
6 | 2676 |
7 | 9708 |
8 | 35718 |
9 | 132926 |
10 | 499228 |
11 | 1888644 |
12 | 7186876 |
13 | 27478508 |
14 | 105474216 |
15 | 406182552 |
16 | 1568563014 |
17 | 6071812638 |
18 | 23552366796 |
19 | 91525132692 |
20 | 356242058004 |
21 | 1388588519268 |
22 | 5419533876696 |
23 | 21176597444712 |
24 | 82834229300124 |
25 | 324326668721100 |
[1,5,18,62,214,750,2676,9708,35718,132926,499228, 1888644,7186876,27478508,105474216,406182552, 1568563014,6071812638,23552366796,91525132692, 356242058004,1388588519268,5419533876696, 21176597444712,82834229300124,324326668721100] |