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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 441 |
| 2 | 614581 |
| 3 | 1064557805 |
| 4 | 1949314526229 |
| 5 | 3619365754064658 |
| 6 | 6743148875847013949 |
| 7 | 12573396789552627635974 |
| 8 | 23449283563696481324707977 |
| 9 | 43734844458505039459034141789 |
| 10 | 81570040233489554572733439665568 |
| 11 | 152137050633841639720340771054558899 |
[1,441,614581,1064557805,1949314526229, 3619365754064658,6743148875847013949, 12573396789552627635974, 23449283563696481324707977, 43734844458505039459034141789, 81570040233489554572733439665568, 152137050633841639720340771054558899] |