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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 1 | 8 |
| 2 | 52 |
| 3 | 187 |
| 4 | 1047 |
| 5 | 5299 |
| 6 | 24030 |
| 7 | 123538 |
| 8 | 612923 |
| 9 | 2935811 |
| 10 | 14687358 |
| 11 | 72457509 |
| 12 | 353534815 |
| 13 | 1751242219 |
| 14 | 8627478474 |
| 15 | 42358776437 |
| 16 | 209066197468 |
| 17 | 1029686222268 |
| 18 | 5066170573231 |
| 19 | 24971517088006 |
| 20 | 122986845166051 |
| 21 | 605538409037300 |
[8,52,187,1047,5299,24030,123538,612923,2935811, 14687358,72457509,353534815,1751242219,8627478474, 42358776437,209066197468,1029686222268, 5066170573231,24971517088006,122986845166051, 605538409037300] |