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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 | 1 |
| 2 | 3 |
| 3 | 10 |
| 4 | 35 |
| 5 | 131 |
| 6 | 498 |
| 7 | 1919 |
| 8 | 7459 |
| 9 | 29170 |
| 10 | 114653 |
| 11 | 452552 |
| 12 | 1792754 |
| 13 | 7124040 |
| 14 | 28386081 |
| 15 | 113372690 |
| 16 | 453743907 |
| 17 | 1819317153 |
| 18 | 7306575042 |
| 19 | 29386858821 |
| 20 | 118348662525 |
| 21 | 477188876405 |
| 22 | 1926137365804 |
| 23 | 7782398551661 |
| 24 | 31472648050930 |
| 25 | 127384123318906 |
| 26 | 515978637418884 |
[1,1,3,10,35,131,498,1919,7459,29170,114653, 452552,1792754,7124040,28386081,113372690, 453743907,1819317153,7306575042,29386858821, 118348662525,477188876405,1926137365804, 7782398551661,31472648050930,127384123318906, 515978637418884] |