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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 | 1 |
| 2 | 2 |
| 3 | 5 |
| 4 | 14 |
| 5 | 44 |
| 6 | 152 |
| 7 | 569 |
| 8 | 2270 |
| 9 | 9524 |
| 10 | 41576 |
| 11 | 187432 |
| 12 | 868144 |
| 13 | 4117216 |
| 14 | 19945408 |
| 15 | 98523013 |
| 16 | 495521686 |
| 17 | 2534420852 |
| 18 | 13167361256 |
| 19 | 69417635240 |
| 20 | 370991119792 |
| 21 | 2008036459744 |
| 22 | 10997771773888 |
| 23 | 60896581502800 |
| 24 | 340633178891872 |
[1,1,2,5,14,44,152,569,2270,9524,41576,187432, 868144,4117216,19945408,98523013,495521686, 2534420852,13167361256,69417635240,370991119792, 2008036459744,10997771773888,60896581502800, 340633178891872] |