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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 | 16 |
| 3 | 108 |
| 4 | 531 |
| 5 | 2119 |
| 6 | 7338 |
| 7 | 23330 |
| 8 | 70369 |
| 9 | 204461 |
| 10 | 576824 |
| 11 | 1589880 |
| 12 | 4304373 |
| 13 | 11495305 |
| 14 | 30376964 |
| 15 | 79611466 |
| 16 | 207289163 |
| 17 | 536963245 |
[1,16,108,531,2119,7338,23330,70369,204461,576824, 1589880,4304373,11495305,30376964,79611466, 207289163,536963245] |