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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 3 |
| 3 | 50 |
| 4 | 1922 |
| 5 | 124030 |
| 6 | 14787217 |
| 7 | 3444870482 |
| 8 | 1641425782980 |
| 9 | 1628526202127628 |
| 10 | 3404399281023205196 |
| 11 | 15152580196285407820510 |
[0,3,50,1922,124030,14787217,3444870482, 1641425782980,1628526202127628, 3404399281023205196,15152580196285407820510] |