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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 | 3 |
| 6 | 6 |
| 7 | 11 |
| 8 | 25 |
| 9 | 55 |
| 10 | 131 |
| 11 | 310 |
| 12 | 760 |
| 13 | 1856 |
| 14 | 4602 |
| 15 | 11418 |
| 16 | 28572 |
| 17 | 71679 |
| 18 | 180829 |
| 19 | 457633 |
| 20 | 1163061 |
| 21 | 2965132 |
| 22 | 7585112 |
| 23 | 19458697 |
| 24 | 50060307 |
| 25 | 129109859 |
| 26 | 333784289 |
| 27 | 864807439 |
| 28 | 2245261973 |
| 29 | 5840375469 |
| 30 | 15219177003 |
[1,1,1,2,3,6,11,25,55,131,310,760,1856,4602,11418, 28572,71679,180829,457633,1163061,2965132,7585112, 19458697,50060307,129109859,333784289,864807439, 2245261973,5840375469,15219177003] |