Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 15 |
3 | 81 |
4 | 435 |
5 | 2313 |
6 | 12195 |
7 | 63801 |
8 | 331395 |
9 | 1710153 |
10 | 8775075 |
11 | 44808921 |
12 | 227890755 |
13 | 1155180393 |
14 | 5839846755 |
15 | 29458152441 |
16 | 148335904515 |
17 | 745888593033 |
18 | 3746364947235 |
19 | 18799770158361 |
20 | 94271405748675 |
21 | 472449569948073 |
22 | 2366624981836515 |
23 | 11850654345690681 |
24 | 59323452211439235 |
[1,3,15,81,435,2313,12195,63801,331395,1710153, 8775075,44808921,227890755,1155180393,5839846755, 29458152441,148335904515,745888593033, 3746364947235,18799770158361,94271405748675, 472449569948073,2366624981836515, 11850654345690681,59323452211439235] |