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| n | a(n) |
|---|---|
| 1 | 8 |
| 2 | 31 |
| 3 | 719 |
| 4 | 17276711 |
| 5 | 557951558165893 |
| 6 | 1713250424923433306065171045669 |
| 7 | 3960162768997467999491098138568123635738830147395528618636887 |
| 8 | 148114266323338300606167235125265318767829304330791212171374192569332869541220746054882408155611146661783688512870116687748 |
[8,31,719,17276711,557951558165893, 1713250424923433306065171045669, 39601627689974679994910981385681236357388301473955\ 28618636887, 14811426632333830060616723512526531876782930433079\ 12121713741925693328695412207460548824081556111466\ 61783688512870116687748] |