The OEIS is supported by the many generous donors to the OEIS Foundation.
Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 4 |
| 3 | 29 |
| 4 | 305 |
| 5 | 4192 |
| 6 | 70875 |
| 7 | 1416781 |
| 8 | 32551650 |
| 9 | 841273527 |
| 10 | 24032201213 |
| 11 | 747395938962 |
| 12 | 24946766300549 |
| 13 | 880465276003861 |
| 14 | 32274320771151308 |
| 15 | 1197240324544640433 |
| 16 | 42849289206116498093 |
| 17 | 1304855947753532683776 |
| 18 | 14954863230501575196551 |
| 19 | -2798084168801754024136463 |
[1,1,4,29,305,4192,70875,1416781,32551650, 841273527,24032201213,747395938962,24946766300549, 880465276003861,32274320771151308, 1197240324544640433,42849289206116498093, 1304855947753532683776,14954863230501575196551, -2798084168801754024136463] |