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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 5 |
| 2 | 72 |
| 3 | 6089 |
| 4 | 3326498 |
| 5 | 12405917044 |
| 6 | 336474648380394 |
| 7 | 69883583587428350874 |
| 8 | 115099747754889610404191160 |
| 9 | 1536533057081060754026861201898620 |
| 10 | 168527150638482484315370462123098294514192 |
[1,5,72,6089,3326498,12405917044,336474648380394, 69883583587428350874,115099747754889610404191160, 1536533057081060754026861201898620, 168527150638482484315370462123098294514192] |