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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | 17 |
| 2 | 291 |
| 3 | 4964 |
| 4 | 84679 |
| 5 | 1444507 |
| 6 | 24641298 |
| 7 | 420346573 |
| 8 | 7170533039 |
| 9 | 122319408236 |
| 10 | 2086600473051 |
| 11 | 35594527450103 |
| 12 | 607193567124802 |
| 13 | 10357885168571737 |
| 14 | 176691241432844331 |
| 15 | 3014108989526925364 |
| 16 | 51416544063390575519 |
[2,17,291,4964,84679,1444507,24641298,420346573, 7170533039,122319408236,2086600473051, 35594527450103,607193567124802,10357885168571737, 176691241432844331,3014108989526925364, 51416544063390575519] |