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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 | 10 |
| 4 | 26 |
| 5 | 71 |
| 6 | 229 |
| 7 | 758 |
| 8 | 2465 |
| 9 | 8326 |
| 10 | 28723 |
| 11 | 99984 |
| 12 | 360520 |
| 13 | 1319152 |
| 14 | 4795180 |
| 15 | 17632228 |
| 16 | 66029313 |
| 17 | 248365358 |
| 18 | 941304113 |
| 19 | 3599515826 |
| 20 | 13781394242 |
| 21 | 52987143192 |
| 22 | 205844656410 |
| 23 | 802871708059 |
| 24 | 3136100869461 |
| 25 | 12309556579260 |
| 26 | 48513612043129 |
| 27 | 191637213524949 |
| 28 | 760513553352670 |
| 29 | 3028212093106559 |
[1,2,4,10,26,71,229,758,2465,8326,28723,99984, 360520,1319152,4795180,17632228,66029313, 248365358,941304113,3599515826,13781394242, 52987143192,205844656410,802871708059, 3136100869461,12309556579260,48513612043129, 191637213524949,760513553352670,3028212093106559] |