n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 3 |
3 | 8 |
4 | 30 |
5 | 121 |
6 | 493 |
7 | 2011 |
8 | 8204 |
9 | 33469 |
10 | 136540 |
11 | 557028 |
12 | 2272449 |
13 | 9270673 |
14 | 37820597 |
15 | 154292742 |
16 | 629451995 |
17 | 2567909604 |
18 | 10476032782 |
19 | 42737977489 |
20 | 174353665921 |
21 | 711292452431 |
22 | 2901785575960 |
23 | 11838111735997 |
[1,2,3,8,30,121,493,2011,8204,33469,136540,557028, 2272449,9270673,37820597,154292742,629451995, 2567909604,10476032782,42737977489,174353665921, 711292452431,2901785575960,11838111735997] |