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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 7 |
| 3 | 551 |
| 4 | 48091 |
| 5 | 2148268 |
| 6 | 87644575267 |
| 7 | 161577754532123 |
| 8 | 36595152483523582367 |
| 9 | 16965509829762630129638831 |
| 10 | 173107561150078104051618631740949 |
| 11 | 1108595900580419409151086339986148307 |
| 12 | 2608169750203411467722731179728125652086612772 |
[1,7,551,48091,2148268,87644575267, 161577754532123,36595152483523582367, 16965509829762630129638831, 173107561150078104051618631740949, 1108595900580419409151086339986148307, 2608169750203411467722731179728125652086612772] |