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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 | 22 |
| 4 | 82 |
| 5 | 314 |
| 6 | 1222 |
| 7 | 4814 |
| 8 | 19138 |
| 9 | 76626 |
| 10 | 308550 |
| 11 | 1248230 |
| 12 | 5069266 |
| 13 | 20654602 |
| 14 | 84392838 |
| 15 | 345659166 |
| 16 | 1418769154 |
| 17 | 5834283298 |
| 18 | 24031706246 |
| 19 | 99134911542 |
| 20 | 409495076050 |
| 21 | 1693539077210 |
| 22 | 7011618614342 |
| 23 | 29058701620974 |
| 24 | 120540377731266 |
| 25 | 500443750830962 |
[1,2,6,22,82,314,1222,4814,19138,76626,308550, 1248230,5069266,20654602,84392838,345659166, 1418769154,5834283298,24031706246,99134911542, 409495076050,1693539077210,7011618614342, 29058701620974,120540377731266,500443750830962] |