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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 1 |
| 3 | 4 |
| 4 | 4 |
| 5 | 12 |
| 6 | 20 |
| 7 | 40 |
| 8 | 75 |
| 9 | 147 |
| 10 | 285 |
| 11 | 535 |
| 12 | 1062 |
| 13 | 2006 |
| 14 | 3918 |
| 15 | 7548 |
| 16 | 14595 |
| 17 | 28293 |
| 18 | 54761 |
| 19 | 106452 |
| 20 | 206421 |
| 21 | 401522 |
| 22 | 780966 |
| 23 | 1520543 |
| 24 | 2962226 |
| 25 | 5777162 |
| 26 | 11272279 |
| 27 | 22009839 |
| 28 | 43006972 |
| 29 | 84077384 |
| 30 | 164482781 |
| 31 | 321944211 |
| 32 | 630487562 |
| 33 | 1235382703 |
[0,1,1,4,4,12,20,40,75,147,285,535,1062,2006,3918, 7548,14595,28293,54761,106452,206421,401522, 780966,1520543,2962226,5777162,11272279,22009839, 43006972,84077384,164482781,321944211,630487562, 1235382703] |