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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 4 |
| 3 | 13 |
| 4 | 59 |
| 5 | 205 |
| 6 | 973 |
| 7 | 3479 |
| 8 | 16882 |
| 9 | 61319 |
| 10 | 301486 |
| 11 | 1105973 |
| 12 | 5485128 |
| 13 | 20259303 |
| 14 | 101097960 |
| 15 | 375265833 |
| 16 | 1881279267 |
| 17 | 7009601253 |
| 18 | 35265787861 |
| 19 | 131791097063 |
| 20 | 664934132269 |
| 21 | 2490886179629 |
| 22 | 12596544495403 |
| 23 | 47280882141059 |
| 24 | 239562157252595 |
[1,4,13,59,205,973,3479,16882,61319,301486, 1105973,5485128,20259303,101097960,375265833, 1881279267,7009601253,35265787861,131791097063, 664934132269,2490886179629,12596544495403, 47280882141059,239562157252595] |