The OEIS is supported by the many generous donors to the OEIS Foundation.
Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 7 |
| 3 | 32 |
| 4 | 137 |
| 5 | 592 |
| 6 | 2597 |
| 7 | 11442 |
| 8 | 50567 |
| 9 | 224112 |
| 10 | 995392 |
| 11 | 4428372 |
| 12 | 19727877 |
| 13 | 87983202 |
| 14 | 392755207 |
| 15 | 1754625632 |
| 16 | 7844003907 |
| 17 | 35086658052 |
| 18 | 157023432677 |
| 19 | 703037135122 |
| 20 | 3148915010832 |
| 21 | 14108913792342 |
| 22 | 63235380631747 |
| 23 | 283495965998772 |
| 24 | 1271282293531077 |
| 25 | 5702105357347602 |
[1,2,7,32,137,592,2597,11442,50567,224112,995392, 4428372,19727877,87983202,392755207,1754625632, 7844003907,35086658052,157023432677,703037135122, 3148915010832,14108913792342,63235380631747, 283495965998772,1271282293531077,5702105357347602] |