n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 6 |
4 | 22 |
5 | 87 |
6 | 354 |
7 | 1459 |
8 | 6056 |
9 | 25252 |
10 | 105632 |
11 | 442916 |
12 | 1860498 |
13 | 7826120 |
14 | 32956964 |
15 | 138911074 |
16 | 585926818 |
17 | 2472923499 |
18 | 10442263142 |
19 | 44112331275 |
20 | 186413949540 |
21 | 788000866243 |
22 | 3331853294090 |
23 | 14090947775581 |
24 | 59604161832772 |
[1,1,2,6,22,87,354,1459,6056,25252,105632,442916, 1860498,7826120,32956964,138911074,585926818, 2472923499,10442263142,44112331275,186413949540, 788000866243,3331853294090,14090947775581, 59604161832772] |