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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 | 4 |
| 3 | 33 |
| 4 | 96 |
| 5 | 255 |
| 6 | 610 |
| 7 | 1437 |
| 8 | 3292 |
| 9 | 7451 |
| 10 | 16662 |
| 11 | 36921 |
| 12 | 81200 |
| 13 | 177399 |
| 14 | 385450 |
| 15 | 833365 |
| 16 | 1794180 |
| 17 | 3848019 |
| 18 | 8225214 |
| 19 | 17528049 |
| 20 | 37250392 |
| 21 | 78966831 |
| 22 | 167021394 |
| 23 | 352528653 |
| 24 | 742650796 |
| 25 | 1561730955 |
| 26 | 3278806630 |
| 27 | 6873273257 |
| 28 | 14387809152 |
| 29 | 30078027111 |
[1,4,33,96,255,610,1437,3292,7451,16662,36921, 81200,177399,385450,833365,1794180,3848019, 8225214,17528049,37250392,78966831,167021394, 352528653,742650796,1561730955,3278806630, 6873273257,14387809152,30078027111] |