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| n | a(n) |
|---|---|
| 1 | 618 |
| 2 | 8218 |
| 3 | 104058 |
| 4 | 1405454 |
| 5 | 18415674 |
| 6 | 246926340 |
| 7 | 3265612528 |
| 8 | 43595364706 |
| 9 | 578517868594 |
| 10 | 7707617770032 |
| 11 | 102423538312580 |
| 12 | 1363394864822130 |
| 13 | 18128275855681956 |
| 14 | 241219714389563658 |
| 15 | 3208169957082934952 |
[618,8218,104058,1405454,18415674,246926340, 3265612528,43595364706,578517868594,7707617770032, 102423538312580,1363394864822130, 18128275855681956,241219714389563658, 3208169957082934952] |