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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 208 |
| 3 | 4678 |
| 4 | 171592 |
| 5 | 4743130 |
| 6 | 132202038 |
| 7 | 3461461060 |
| 8 | 88405359072 |
| 9 | 2197293738684 |
| 10 | 53565801482634 |
| 11 | 1284136961473864 |
| 12 | 30365618160010650 |
| 13 | 709700882866473654 |
| 14 | 16422374051280905778 |
| 15 | 376744989106882359402 |
| 16 | 8578133199326578887346 |
| 17 | 194030408441913214687458 |
[1,208,4678,171592,4743130,132202038,3461461060, 88405359072,2197293738684,53565801482634, 1284136961473864,30365618160010650, 709700882866473654,16422374051280905778, 376744989106882359402,8578133199326578887346, 194030408441913214687458] |