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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 5 |
| 5 | 14 |
| 6 | 26 |
| 7 | 100 |
| 8 | 333 |
| 9 | 1110 |
| 10 | 3742 |
| 11 | 12764 |
| 12 | 44258 |
| 13 | 154636 |
| 14 | 544660 |
| 15 | 1932360 |
| 16 | 6900029 |
| 17 | 24780390 |
| 18 | 89445174 |
| 19 | 324326060 |
| 20 | 1180834390 |
| 21 | 4315287140 |
| 22 | 15823305516 |
| 23 | 58200045432 |
| 24 | 214672363410 |
| 25 | 793883691004 |
| 26 | 2942917457772 |
| 27 | 10933569255832 |
| 28 | 40704185771812 |
| 29 | 151826357818840 |
| 30 | 567322837830824 |
| 31 | 2123429246035600 |
| 32 | 7960199797453213 |
| 33 | 29884582184913542 |
[0,1,1,2,5,14,26,100,333,1110,3742,12764,44258, 154636,544660,1932360,6900029,24780390,89445174, 324326060,1180834390,4315287140,15823305516, 58200045432,214672363410,793883691004, 2942917457772,10933569255832,40704185771812, 151826357818840,567322837830824,2123429246035600, 7960199797453213,29884582184913542] |