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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 7 |
| 3 | 85 |
| 4 | 814 |
| 5 | 102727 |
| 6 | 12277291 |
| 7 | 46825417 |
| 8 | 65344835 |
| 9 | 84274153 |
| 10 | 112772640 |
| 11 | 2289634277 |
| 12 | 3032809277 |
| 13 | 19401126651121 |
| 14 | 4053853857998431 |
| 15 | 20352163396468207 |
| 16 | 25839812150858087 |
| 17 | 16032124053604289 |
| 18 | 40337156045251101 |
| 19 | 2434594429238659671 |
| 20 | 1093231405659415842773 |
[1,7,85,814,102727,12277291,46825417,65344835, 84274153,112772640,2289634277,3032809277, 19401126651121,4053853857998431,20352163396468207, 25839812150858087,16032124053604289, 40337156045251101,2434594429238659671, 1093231405659415842773] |