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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 3 | 1 |
| 4 | 9 |
| 5 | 41 |
| 6 | 146 |
| 7 | 456 |
| 8 | 1312 |
| 9 | 3568 |
| 10 | 9312 |
| 11 | 23552 |
| 12 | 58112 |
| 13 | 140544 |
| 14 | 334336 |
| 15 | 784384 |
| 16 | 1818624 |
| 17 | 4173824 |
| 18 | 9494528 |
| 19 | 21430272 |
| 20 | 48037888 |
| 21 | 107020288 |
| 22 | 237109248 |
| 23 | 522715136 |
| 24 | 1147142144 |
| 25 | 2507145216 |
| 26 | 5458886656 |
| 27 | 11844714496 |
| 28 | 25618808832 |
| 29 | 55247372288 |
[1,9,41,146,456,1312,3568,9312,23552,58112,140544, 334336,784384,1818624,4173824,9494528,21430272, 48037888,107020288,237109248,522715136,1147142144, 2507145216,5458886656,11844714496,25618808832, 55247372288] |