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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | 1 |
| 2 | 3 |
| 3 | 11 |
| 4 | 322 |
| 5 | 1149851 |
| 6 | 425730551631123 |
| 7 | 208406472252232726621841472637412401 |
| 8 | 18490864749804416780204061487408593066264011288598603441079481989361240762271783793922 |
[2,1,3,11,322,1149851,425730551631123, 208406472252232726621841472637412401, 18490864749804416780204061487408593066264011288598\ 603441079481989361240762271783793922] |