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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 17 |
| 2 | 589 |
| 3 | 23063 |
| 4 | 952421 |
| 5 | 40527732 |
| 6 | 1758058219 |
| 7 | 77293019898 |
| 8 | 3431959098741 |
| 9 | 153547092814172 |
| 10 | 6911193017626324 |
| 11 | 312596792782451183 |
| 12 | 14196172772254858211 |
| 13 | 646897139198653660412 |
| 14 | 29563753017571135649154 |
| 15 | 1354477988702509748029668 |
| 16 | 62191803671962046948722581 |
[1,17,589,23063,952421,40527732,1758058219, 77293019898,3431959098741,153547092814172, 6911193017626324,312596792782451183, 14196172772254858211,646897139198653660412, 29563753017571135649154,1354477988702509748029668, 62191803671962046948722581] |