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) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 7 |
| 5 | 24 |
| 6 | 126 |
| 7 | 815 |
| 8 | 6465 |
| 9 | 58072 |
| 10 | 578663 |
[1,1,2,7,24,126,815,6465,58072,578663] |