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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | 1 |
| 2 | 2 |
| 3 | 7 |
| 4 | 56 |
| 5 | 2212 |
| 6 | 2595782 |
| 7 | 3374959180831 |
| 8 | 5695183504489239067484387 |
| 9 | 16217557574922386301420531277071365103168734284282 |
| 10 | 131504586847961235687181874578063117114329409897598970946516793776220805297959867258692249572750581 |
[2,1,2,7,56,2212,2595782,3374959180831, 5695183504489239067484387, 16217557574922386301420531277071365103168734284282\ , 13150458684796123568718187457806311711432940989759\ 8970946516793776220805297959867258692249572750581] |