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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 9 |
| 3 | 106 |
| 4 | 1697 |
| 5 | 35076 |
| 6 | 893947 |
| 7 | 27165706 |
| 8 | 960298593 |
| 9 | 38751082552 |
| 10 | 1758831242291 |
| 11 | 88726543365054 |
| 12 | 4926355857050641 |
| 13 | 298605321687360676 |
| 14 | 19623211558172733435 |
| 15 | 1389870724939251455506 |
| 16 | 105556814502357807727553 |
| 17 | 8557797733469700008170224 |
[1,1,9,106,1697,35076,893947,27165706,960298593, 38751082552,1758831242291,88726543365054, 4926355857050641,298605321687360676, 19623211558172733435,1389870724939251455506, 105556814502357807727553, 8557797733469700008170224] |