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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 7 |
| 4 | 2667 |
| 5 | 27559 |
| 6 | 677207307 |
| 7 | 225735769 |
| 8 | 698915267211 |
| 9 | 29587412978599 |
| 10 | 811637999283747 |
| 11 | 16907189874529 |
| 12 | 12200855315219510767697163 |
| 13 | 254155396405925065290841 |
| 14 | 878412242330556407427 |
| 15 | 1074593611687774330088252281 |
| 16 | 16138807601873739769 |
| 17 | 37471768236581557067194399 |
[1,3,7,2667,27559,677207307,225735769, 698915267211,29587412978599,811637999283747, 16907189874529,12200855315219510767697163, 254155396405925065290841,878412242330556407427, 1074593611687774330088252281,16138807601873739769, 37471768236581557067194399] |