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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 702 |
| 3 | 22187 |
| 4 | 1999511 |
| 5 | 153265405 |
| 6 | 12219307955 |
| 7 | 969267512820 |
| 8 | 77018325396680 |
| 9 | 6119460744287122 |
| 10 | 486255500462536848 |
| 11 | 38638506180388225818 |
| 12 | 3070282856537314013825 |
| 13 | 243970256623096658549212 |
[0,702,22187,1999511,153265405,12219307955, 969267512820,77018325396680,6119460744287122, 486255500462536848,38638506180388225818, 3070282856537314013825,243970256623096658549212] |