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 | 3 |
| 2 | 9 |
| 3 | 35 |
| 4 | 137 |
| 5 | 547 |
| 6 | 2185 |
| 7 | 8739 |
| 8 | 34953 |
| 9 | 139811 |
| 10 | 559241 |
| 11 | 2236963 |
| 12 | 8947849 |
| 13 | 35791395 |
| 14 | 143165577 |
| 15 | 572662307 |
| 16 | 2290649225 |
| 17 | 9162596899 |
| 18 | 36650387593 |
| 19 | 146601550371 |
| 20 | 586406201481 |
| 21 | 2345624805923 |
| 22 | 9382499223689 |
| 23 | 37529996894755 |
| 24 | 150119987579017 |
| 25 | 600479950316067 |
[1,3,9,35,137,547,2185,8739,34953,139811,559241, 2236963,8947849,35791395,143165577,572662307, 2290649225,9162596899,36650387593,146601550371, 586406201481,2345624805923,9382499223689, 37529996894755,150119987579017,600479950316067] |