n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 3 |
4 | 7 |
5 | 12 |
6 | 42 |
7 | 123 |
8 | 503 |
9 | 2008 |
10 | 8720 |
11 | 38365 |
12 | 173609 |
13 | 792828 |
14 | 3662924 |
15 | 17034381 |
16 | 79703081 |
17 | 374624254 |
18 | 1767883444 |
19 | 8370666417 |
20 | 39751072847 |
21 | 189262621864 |
22 | 903220058756 |
23 | 4319518316899 |
24 | 20697040198889 |
25 | 99343899144822 |
26 | 477609477924308 |
27 | 2299585449279713 |
[1,2,3,7,12,42,123,503,2008,8720,38365,173609, 792828,3662924,17034381,79703081,374624254, 1767883444,8370666417,39751072847,189262621864, 903220058756,4319518316899,20697040198889, 99343899144822,477609477924308,2299585449279713] |