Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 0 |
1 | 2 |
2 | 16 |
3 | 106 |
4 | 578 |
5 | 2954 |
6 | 15064 |
7 | 75908 |
8 | 380334 |
9 | 1904330 |
10 | 9528618 |
11 | 47654840 |
12 | 238295096 |
13 | 1191556256 |
14 | 5957936770 |
15 | 29789860126 |
16 | 148950201902 |
17 | 744752899780 |
18 | 3723767329212 |
19 | 18618843605284 |
20 | 93094240114350 |
21 | 465471240742354 |
22 | 2327356261817746 |
23 | 11636781564585616 |
[0,2,16,106,578,2954,15064,75908,380334,1904330, 9528618,47654840,238295096,1191556256,5957936770, 29789860126,148950201902,744752899780, 3723767329212,18618843605284,93094240114350, 465471240742354,2327356261817746, 11636781564585616] |