n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 3 |
3 | 15 |
4 | 82 |
5 | 495 |
6 | 3144 |
7 | 20874 |
8 | 142766 |
9 | 1000083 |
10 | 7136463 |
11 | 51699614 |
12 | 379214625 |
13 | 2810720045 |
14 | 21018835670 |
15 | 158389275075 |
16 | 1201541422730 |
17 | 9168456492986 |
18 | 70324572634341 |
19 | 541910543713685 |
20 | 4193257236992896 |
21 | 32568879336517050 |
22 | 253822497160605899 |
23 | 1984276479881989537 |
24 | 15556238037968354214 |
25 | 122274773948426045945 |
[0,1,3,15,82,495,3144,20874,142766,1000083, 7136463,51699614,379214625,2810720045,21018835670, 158389275075,1201541422730,9168456492986, 70324572634341,541910543713685,4193257236992896, 32568879336517050,253822497160605899, 1984276479881989537,15556238037968354214, 122274773948426045945] |