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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 | 8 |
| 3 | 30 |
| 4 | 136 |
| 5 | 585 |
| 6 | 2770 |
| 7 | 12583 |
| 8 | 60703 |
| 9 | 283705 |
| 10 | 1382991 |
| 11 | 6577224 |
| 12 | 32276173 |
| 13 | 155288583 |
| 14 | 765485523 |
| 15 | 3712957324 |
| 16 | 18361035980 |
| 17 | 89586761260 |
| 18 | 444040982650 |
| 19 | 2176159223982 |
| 20 | 10804788645653 |
| 21 | 53132340861000 |
| 22 | 264151253880211 |
| 23 | 1302420514209831 |
| 24 | 6481646673682990 |
| 25 | 32026182851306522 |
| 26 | 159509303727005468 |
[1,2,8,30,136,585,2770,12583,60703,283705,1382991, 6577224,32276173,155288583,765485523,3712957324, 18361035980,89586761260,444040982650, 2176159223982,10804788645653,53132340861000, 264151253880211,1302420514209831,6481646673682990, 32026182851306522,159509303727005468] |