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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 | 12 |
| 3 | 22 |
| 4 | 78 |
| 5 | 283 |
| 6 | 1097 |
| 7 | 4503 |
| 8 | 18491 |
| 9 | 77067 |
| 10 | 323638 |
| 11 | 1361118 |
| 12 | 5735262 |
| 13 | 24183115 |
| 14 | 102003399 |
| 15 | 430351949 |
| 16 | 1815817419 |
| 17 | 7662005213 |
| 18 | 32331475024 |
| 19 | 136431305732 |
| 20 | 575712567240 |
| 21 | 2429399857349 |
| 22 | 10251633060681 |
| 23 | 43260101137309 |
[1,12,22,78,283,1097,4503,18491,77067,323638, 1361118,5735262,24183115,102003399,430351949, 1815817419,7662005213,32331475024,136431305732, 575712567240,2429399857349,10251633060681, 43260101137309] |