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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 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 16 |
| 6 | 79 |
| 7 | 456 |
| 8 | 2194 |
| 9 | 20801 |
| 10 | 142675 |
| 11 | 1104671 |
| 12 | 7604426 |
| 13 | 61694634 |
| 14 | 451816635 |
| 15 | 3436067731 |
| 16 | 25239520503 |
| 17 | 319613046628 |
| 18 | 3036006671645 |
| 19 | 30933754595164 |
| 20 | 285945150234342 |
| 21 | 3026592170353007 |
| 22 | 28992125588332051 |
| 23 | 285889488934911134 |
[1,1,1,2,16,79,456,2194,20801,142675,1104671, 7604426,61694634,451816635,3436067731,25239520503, 319613046628,3036006671645,30933754595164, 285945150234342,3026592170353007, 28992125588332051,285889488934911134] |