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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 | 3 |
| 3 | 10 |
| 4 | 35 |
| 5 | 125 |
| 6 | 460 |
| 7 | 1747 |
| 8 | 6830 |
| 9 | 27502 |
| 10 | 113987 |
| 11 | 485971 |
| 12 | 2129956 |
| 13 | 9591009 |
| 14 | 44341610 |
| 15 | 210345962 |
| 16 | 1023182861 |
| 17 | 5100235807 |
| 18 | 26035673051 |
| 19 | 136023990102 |
| 20 | 726877123975 |
| 21 | 3970461069738 |
| 22 | 22156281667277 |
| 23 | 126234185382902 |
| 24 | 733899631974167 |
| 25 | 4351500789211840 |
[1,3,10,35,125,460,1747,6830,27502,113987,485971, 2129956,9591009,44341610,210345962,1023182861, 5100235807,26035673051,136023990102,726877123975, 3970461069738,22156281667277,126234185382902, 733899631974167,4351500789211840] |