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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 8 |
| 3 | 44 |
| 4 | 192 |
| 5 | 718 |
| 6 | 2400 |
| 7 | 7352 |
| 8 | 20992 |
| 9 | 56549 |
| 10 | 145008 |
| 11 | 356388 |
| 12 | 844032 |
| 13 | 1934534 |
| 14 | 4306368 |
| 15 | 9337704 |
| 16 | 19771392 |
| 17 | 40965362 |
| 18 | 83207976 |
| 19 | 165944732 |
| 20 | 325393024 |
| 21 | 628092832 |
| 22 | 1194744096 |
| 23 | 2241688744 |
| 24 | 4152367104 |
| 25 | 7599231223 |
| 26 | 13749863984 |
[1,8,44,192,718,2400,7352,20992,56549,145008, 356388,844032,1934534,4306368,9337704,19771392, 40965362,83207976,165944732,325393024,628092832, 1194744096,2241688744,4152367104,7599231223, 13749863984] |