Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 2 |
4 | 5 |
5 | 21 |
6 | 109 |
7 | 695 |
8 | 5143 |
9 | 43194 |
10 | 406017 |
11 | 4222570 |
12 | 48137292 |
13 | 596902409 |
14 | 7998492274 |
15 | 115178288737 |
16 | 1773745646540 |
17 | 29089428603256 |
18 | 506156057696642 |
19 | 9313271461618196 |
20 | 180677466355392996 |
21 | 3685820313650017112 |
[1,1,1,2,5,21,109,695,5143,43194,406017,4222570, 48137292,596902409,7998492274,115178288737, 1773745646540,29089428603256,506156057696642, 9313271461618196,180677466355392996, 3685820313650017112] |