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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 24 |
| 3 | 530 |
| 4 | 65632 |
| 5 | 33554482 |
| 6 | 68719479000 |
| 7 | 562949953421410 |
| 8 | 18446744073709814144 |
| 9 | 2417851639229258349417122 |
| 10 | 1267650600228229401496837423704 |
| 11 | 2658455991569831745807614120560689394 |
| 12 | 22300745198530623141535718272648636384486240 |
| 13 | 748288838313422294120286634350736906063837462004050 |
[2,24,530,65632,33554482,68719479000, 562949953421410,18446744073709814144, 2417851639229258349417122, 1267650600228229401496837423704, 2658455991569831745807614120560689394, 22300745198530623141535718272648636384486240, 74828883831342229412028663435073690606383746200405\ 0] |