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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 | 3 |
| 3 | 6 |
| 4 | 13 |
| 5 | 30 |
| 6 | 76 |
| 7 | 211 |
| 8 | 638 |
| 9 | 2088 |
| 10 | 7354 |
| 11 | 27731 |
| 12 | 111449 |
| 13 | 475449 |
| 14 | 2145316 |
| 15 | 10205714 |
| 16 | 51038980 |
| 17 | 267623147 |
| 18 | 1467786895 |
| 19 | 8401550878 |
| 20 | 50087295107 |
| 21 | 310419697655 |
| 22 | 1996491898802 |
| 23 | 13303966566481 |
| 24 | 91714857551787 |
[1,1,3,6,13,30,76,211,638,2088,7354,27731,111449, 475449,2145316,10205714,51038980,267623147, 1467786895,8401550878,50087295107,310419697655, 1996491898802,13303966566481,91714857551787] |