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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 1 |
| 3 | 3 |
| 4 | 9 |
| 5 | 20 |
| 6 | 48 |
| 7 | 101 |
| 8 | 219 |
| 9 | 454 |
| 10 | 944 |
| 11 | 1917 |
| 12 | 3925 |
| 13 | 7915 |
| 14 | 16004 |
| 15 | 32188 |
| 16 | 64751 |
| 17 | 129822 |
| 18 | 260489 |
| 19 | 521672 |
| 20 | 1045060 |
| 21 | 2091808 |
| 22 | 4187047 |
| 23 | 8377255 |
| 24 | 16762285 |
| 25 | 33531228 |
| 26 | 67077485 |
| 27 | 134170217 |
| 28 | 268371678 |
| 29 | 536772231 |
| 30 | 1073611321 |
| 31 | 2147282291 |
| 32 | 4294697258 |
| 33 | 8589527163 |
| 34 | 17179321094 |
[0,0,1,3,9,20,48,101,219,454,944,1917,3925,7915, 16004,32188,64751,129822,260489,521672,1045060, 2091808,4187047,8377255,16762285,33531228, 67077485,134170217,268371678,536772231,1073611321, 2147282291,4294697258,8589527163,17179321094] |