Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | -1 |
1 | 3 |
2 | 0 |
3 | 3 |
4 | 5 |
5 | 18 |
6 | 66 |
7 | 298 |
8 | 1511 |
9 | 8670 |
10 | 55168 |
11 | 386394 |
12 | 2951673 |
13 | 24428654 |
14 | 217723390 |
15 | 2079109386 |
16 | 21177620171 |
17 | 229195610430 |
18 | 2626388037372 |
19 | 31768201320634 |
20 | 404485298533085 |
21 | 5407570127090958 |
22 | 75736453324821754 |
23 | 1108952444876609898 |
24 | 16943545270848408495 |
[-1,3,0,3,5,18,66,298,1511,8670,55168,386394, 2951673,24428654,217723390,2079109386,21177620171, 229195610430,2626388037372,31768201320634, 404485298533085,5407570127090958, 75736453324821754,1108952444876609898, 16943545270848408495] |