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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 15 |
| 3 | 47 |
| 4 | 109 |
| 5 | 265 |
| 6 | 1699 |
| 7 | 20653 |
| 8 | 22352 |
| 9 | 110061 |
| 10 | 132413 |
| 11 | 242474 |
| 12 | 374887 |
| 13 | 1367135 |
| 14 | 5843427 |
| 15 | 112392248 |
| 16 | 455412419 |
| 17 | 1478629505 |
| 18 | 1934041924 |
| 19 | 3412671429 |
| 20 | 5346713353 |
| 21 | 24799524841 |
| 22 | 30146238194 |
| 23 | 386554383169 |
| 24 | 2349472537208 |
| 25 | 5085499457585 |
| 26 | 12520471452378 |
[1,2,15,47,109,265,1699,20653,22352,110061,132413, 242474,374887,1367135,5843427,112392248,455412419, 1478629505,1934041924,3412671429,5346713353, 24799524841,30146238194,386554383169, 2349472537208,5085499457585,12520471452378] |