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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 4 |
| 3 | 169 |
| 4 | 3926427054 |
| 5 | 15206669692893781237708064484944058 |
| 6 | 166113478292106687629383993647806682871917942531896956843533578349271314189657277839057196220767581277199448858 |
[1,4,169,3926427054, 15206669692893781237708064484944058, 16611347829210668762938399364780668287191794253189\ 69568435335783492713141896572778390571962207675812\ 77199448858] |