n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 3 |
6 | 10 |
7 | 29 |
8 | 100 |
9 | 387 |
10 | 2276 |
11 | 17581 |
12 | 155034 |
13 | 1632582 |
14 | 20304423 |
15 | 321404215 |
16 | 6545616593 |
17 | 163131399978 |
18 | 4942168957230 |
19 | 181963337378973 |
20 | 8263219425456168 |
21 | 468671383459094714 |
22 | 32913148405732346545 |
[1,1,1,1,3,10,29,100,387,2276,17581,155034, 1632582,20304423,321404215,6545616593, 163131399978,4942168957230,181963337378973, 8263219425456168,468671383459094714, 32913148405732346545] |