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 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 4 |
| 5 | 7 |
| 6 | 19 |
| 7 | 28 |
| 8 | 85 |
| 9 | 282 |
| 10 | 756 |
| 11 | 1198 |
| 12 | 2472 |
| 13 | 2732 |
| 14 | 24852 |
| 15 | 39628 |
| 16 | 53491 |
| 17 | 71236 |
| 18 | 72301 |
| 19 | 81652 |
| 20 | 167509 |
[0,1,2,4,7,19,28,85,282,756,1198,2472,2732,24852, 39628,53491,71236,72301,81652,167509] |