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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 6 |
| 3 | 23 |
| 4 | 103 |
| 5 | 504 |
| 6 | 2588 |
| 7 | 13661 |
| 8 | 73373 |
| 9 | 398814 |
| 10 | 2186818 |
| 11 | 12072275 |
| 12 | 67004451 |
| 13 | 373532596 |
| 14 | 2089994360 |
| 15 | 11730304377 |
| 16 | 66012996217 |
| 17 | 372350924666 |
| 18 | 2104523577534 |
| 19 | 11916013288271 |
| 20 | 67576932913951 |
| 21 | 383781666337072 |
| 22 | 2182362613988116 |
| 23 | 12424357722805333 |
[1,2,6,23,103,504,2588,13661,73373,398814,2186818, 12072275,67004451,373532596,2089994360, 11730304377,66012996217,372350924666, 2104523577534,11916013288271,67576932913951, 383781666337072,2182362613988116, 12424357722805333] |