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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 | 6 |
| 3 | 30 |
| 4 | 260 |
| 5 | 3130 |
| 6 | 46662 |
| 7 | 823550 |
| 8 | 16777224 |
| 9 | 387420498 |
| 10 | 10000000010 |
| 11 | 285311670622 |
| 12 | 8916100448268 |
| 13 | 302875106592266 |
| 14 | 11112006825558030 |
| 15 | 437893890380859390 |
| 16 | 18446744073709551632 |
| 17 | 827240261886336764194 |
[1,2,6,30,260,3130,46662,823550,16777224, 387420498,10000000010,285311670622,8916100448268, 302875106592266,11112006825558030, 437893890380859390,18446744073709551632, 827240261886336764194] |