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| n | a(n) |
|---|---|
| 1 | 452 |
| 2 | 616454 |
| 3 | 1142726121 |
| 4 | 2131764323784 |
| 5 | 3987381898274165 |
| 6 | 7462045099033787721 |
| 7 | 13966565723905519312347 |
| 8 | 26141937448057102691381982 |
| 9 | 48931705939631684079610274144 |
| 10 | 91589174857476172550555533830040 |
[452,616454,1142726121,2131764323784, 3987381898274165,7462045099033787721, 13966565723905519312347, 26141937448057102691381982, 48931705939631684079610274144, 91589174857476172550555533830040] |