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 | 2 |
| 3 | 6 |
| 4 | 16 |
| 5 | 74 |
| 6 | 368 |
| 7 | 1924 |
| 8 | 10496 |
| 9 | 65446 |
| 10 | 426596 |
| 11 | 3063568 |
| 12 | 23111856 |
| 13 | 192313168 |
| 14 | 1659439736 |
| 15 | 15571466308 |
| 16 | 150999440500 |
[1,2,6,16,74,368,1924,10496,65446,426596,3063568, 23111856,192313168,1659439736,15571466308, 150999440500] |