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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 | 9 |
| 4 | 27 |
| 5 | 73 |
| 6 | 189 |
| 7 | 465 |
| 8 | 1115 |
| 9 | 2601 |
| 10 | 5973 |
| 11 | 13489 |
| 12 | 30149 |
| 13 | 66641 |
| 14 | 146233 |
| 15 | 318369 |
| 16 | 689403 |
| 17 | 1484137 |
| 18 | 3181797 |
| 19 | 6790641 |
| 20 | 14445101 |
| 21 | 30617841 |
| 22 | 64724553 |
| 23 | 136426849 |
| 24 | 286926757 |
| 25 | 601999633 |
| 26 | 1260707529 |
| 27 | 2634831585 |
| 28 | 5497982025 |
| 29 | 11452601761 |
| 30 | 23823827825 |
| 31 | 49484904257 |
[1,1,3,9,27,73,189,465,1115,2601,5973,13489,30149, 66641,146233,318369,689403,1484137,3181797, 6790641,14445101,30617841,64724553,136426849, 286926757,601999633,1260707529,2634831585, 5497982025,11452601761,23823827825,49484904257] |