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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 5 |
| 3 | 29 |
| 4 | 262 |
| 5 | 3132 |
| 6 | 46690 |
| 7 | 823578 |
| 8 | 16777484 |
| 9 | 387420781 |
| 10 | 10000003165 |
| 11 | 285311673777 |
| 12 | 8916100495209 |
| 13 | 302875106639207 |
| 14 | 11112006826381861 |
| 15 | 437893890381686113 |
| 16 | 18446744073726332260 |
| 17 | 827240261886353544822 |
| 18 | 39346408075296925042900 |
[1,5,29,262,3132,46690,823578,16777484,387420781, 10000003165,285311673777,8916100495209, 302875106639207,11112006826381861, 437893890381686113,18446744073726332260, 827240261886353544822,39346408075296925042900] |