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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 | 2 |
| 3 | 8 |
| 4 | 35 |
| 5 | 176 |
| 6 | 1057 |
| 7 | 7404 |
| 8 | 59232 |
| 9 | 533088 |
| 10 | 5330885 |
| 11 | 58639742 |
| 12 | 703676914 |
| 13 | 9147799886 |
| 14 | 128069198408 |
| 15 | 1921037976127 |
| 16 | 30736607618038 |
| 17 | 522522329506658 |
| 18 | 9405401931119859 |
| 19 | 178702636691277329 |
| 20 | 3574052733825546592 |
[1,2,8,35,176,1057,7404,59232,533088,5330885, 58639742,703676914,9147799886,128069198408, 1921037976127,30736607618038,522522329506658, 9405401931119859,178702636691277329, 3574052733825546592] |