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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 5 |
| 3 | 19 |
| 4 | 909 |
| 5 | 709338 |
| 6 | 4794024440479 |
| 7 | 18787437394610419733587349 |
| 8 | 438597049892989902759955952867127541411726874886473 |
| 9 | 175915259950103387380668466916070098283235189077796884344520632101017268238077131833609385455236441012 |
[1,5,19,909,709338,4794024440479, 18787437394610419733587349, 43859704989298990275995595286712754141172687488647\ 3, 17591525995010338738066846691607009828323518907779\ 68843445206321010172682380771318336093854552364410\ 12] |