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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 3 | 1 |
| 4 | 4 |
| 5 | 14 |
| 6 | 48 |
| 7 | 151 |
| 8 | 496 |
| 9 | 1679 |
| 10 | 4892 |
| 11 | 16099 |
| 12 | 55566 |
| 13 | 126070 |
| 14 | 437604 |
| 15 | 1610354 |
| 16 | 10586223 |
| 17 | 37753710 |
| 18 | 142615460 |
| 19 | 545804530 |
| 20 | 2501659594 |
| 21 | 9822392246 |
| 22 | 38387432220 |
| 23 | 149904480000 |
| 24 | 622664257407 |
| 25 | 2483093527816 |
| 26 | 9821396841402 |
[1,4,14,48,151,496,1679,4892,16099,55566,126070, 437604,1610354,10586223,37753710,142615460, 545804530,2501659594,9822392246,38387432220, 149904480000,622664257407,2483093527816, 9821396841402] |