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 | 2 |
| 1 | 2 |
| 2 | 4 |
| 3 | 10 |
| 4 | 66 |
| 5 | 77 |
| 6 | 505 |
| 7 | 1655 |
| 8 | 4554 |
| 9 | 95259 |
| 10 | 695486 |
| 11 | 754446 |
| 12 | 12166721 |
| 13 | 101089109 |
| 14 | 414897413 |
| 15 | 6841551376 |
| 16 | 84604250548 |
| 17 | 123761716632 |
| 18 | 1633685476445 |
| 19 | 13337764677442 |
| 20 | 79077443378087 |
| 21 | 632521435125225 |
| 22 | 7744164113623377 |
| 23 | 108500061705109490 |
| 24 | 1428467362263664833 |
[2,2,4,10,66,77,505,1655,4554,95259,695486,754446, 12166721,101089109,414897413,6841551376, 84604250548,123761716632,1633685476445, 13337764677442,79077443378087,632521435125225, 7744164113623377,108500061705109490, 1428467362263664833] |