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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 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 10 |
| 5 | 22 |
| 6 | 62 |
| 7 | 146 |
| 8 | 422 |
| 9 | 1084 |
| 10 | 3160 |
| 11 | 8064 |
| 12 | 25190 |
| 13 | 65204 |
| 14 | 198652 |
| 15 | 545790 |
| 16 | 1680122 |
| 17 | 4495548 |
| 18 | 14352768 |
| 19 | 38665478 |
| 20 | 122530052 |
| 21 | 343978146 |
| 22 | 1072985932 |
| 23 | 2947659006 |
| 24 | 9662067644 |
| 25 | 26573691092 |
| 26 | 84395544446 |
| 27 | 241295995524 |
| 28 | 769819399580 |
| 29 | 2140972333774 |
| 30 | 7039688293036 |
| 31 | 19579468840840 |
[1,1,2,4,10,22,62,146,422,1084,3160,8064,25190, 65204,198652,545790,1680122,4495548,14352768, 38665478,122530052,343978146,1072985932, 2947659006,9662067644,26573691092,84395544446, 241295995524,769819399580,2140972333774, 7039688293036,19579468840840] |