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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 702 |
| 3 | 10487 |
| 4 | 570806 |
| 5 | 24891152 |
| 6 | 1155724711 |
| 7 | 53245963290 |
| 8 | 2457712512055 |
| 9 | 113464874364839 |
| 10 | 5239113289126198 |
| 11 | 241898389551869436 |
| 12 | 11169440128316212241 |
| 13 | 515732336978881669820 |
| 14 | 23813298292443451483430 |
[0,702,10487,570806,24891152,1155724711, 53245963290,2457712512055,113464874364839, 5239113289126198,241898389551869436, 11169440128316212241,515732336978881669820, 23813298292443451483430] |