The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 5 |
| 3 | 49 |
| 4 | 205 |
| 5 | 5269 |
| 6 | 5369 |
| 7 | 266681 |
| 8 | 1077749 |
| 9 | 9778141 |
| 10 | 1968329 |
| 11 | 239437889 |
| 12 | 240505109 |
| 13 | 40799043101 |
| 14 | 40931552621 |
| 15 | 205234915681 |
| 16 | 822968714749 |
| 17 | 238357395880861 |
| 18 | 238820721143261 |
| 19 | 86364397717734821 |
| 20 | 17299975731542641 |
| 21 | 353562301485889 |
| 22 | 354019312583809 |
| 23 | 187497409728228241 |
[1,5,49,205,5269,5369,266681,1077749,9778141, 1968329,239437889,240505109,40799043101, 40931552621,205234915681,822968714749, 238357395880861,238820721143261,86364397717734821, 17299975731542641,353562301485889,354019312583809, 187497409728228241] |