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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 | 4 |
| 3 | 8 |
| 4 | 18 |
| 5 | 42 |
| 6 | 92 |
| 7 | 194 |
| 8 | 430 |
| 9 | 982 |
| 10 | 2158 |
| 11 | 4608 |
| 12 | 10198 |
| 13 | 23116 |
| 14 | 50840 |
| 15 | 109178 |
| 16 | 241472 |
| 17 | 545148 |
| 18 | 1199474 |
| 19 | 2584664 |
| 20 | 5714476 |
| 21 | 12867300 |
| 22 | 28319264 |
| 23 | 61166388 |
| 24 | 135200076 |
| 25 | 303859934 |
| 26 | 668886256 |
| 27 | 1447227562 |
| 28 | 3198315058 |
| 29 | 7177895844 |
[1,2,4,8,18,42,92,194,430,982,2158,4608,10198, 23116,50840,109178,241472,545148,1199474,2584664, 5714476,12867300,28319264,61166388,135200076, 303859934,668886256,1447227562,3198315058, 7177895844] |