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n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 15 |
5 | 47 |
6 | 160 |
7 | 554 |
8 | 1987 |
9 | 7243 |
10 | 26873 |
11 | 100930 |
12 | 383412 |
13 | 1469673 |
14 | 5679033 |
15 | 22095308 |
16 | 86489211 |
17 | 340360513 |
18 | 1345814572 |
19 | 5344184197 |
20 | 21303295069 |
21 | 85216434084 |
22 | 341960332173 |
23 | 1376212103798 |
24 | 5553269024152 |
25 | 22463340663474 |
26 | 91071265881382 |
27 | 369996643180885 |
28 | 1506118767637576 |
[1,1,2,5,15,47,160,554,1987,7243,26873,100930, 383412,1469673,5679033,22095308,86489211, 340360513,1345814572,5344184197,21303295069, 85216434084,341960332173,1376212103798, 5553269024152,22463340663474,91071265881382, 369996643180885,1506118767637576] |