Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 20 |
5 | 97 |
6 | 573 |
7 | 3956 |
8 | 31285 |
9 | 278721 |
10 | 2761871 |
11 | 30129503 |
12 | 358814994 |
13 | 4631975383 |
14 | 64426566695 |
15 | 960541539816 |
16 | 15281342678897 |
17 | 258393612570435 |
18 | 4627594697852333 |
19 | 87503608832116847 |
20 | 1742117303112144502 |
[1,1,2,5,20,97,573,3956,31285,278721,2761871, 30129503,358814994,4631975383,64426566695, 960541539816,15281342678897,258393612570435, 4627594697852333,87503608832116847, 1742117303112144502] |