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| n | a(n) |
|---|---|
| 1 | 2172 |
| 2 | 15246 |
| 3 | 117100 |
| 4 | 922890 |
| 5 | 7415658 |
| 6 | 60395332 |
| 7 | 495518534 |
| 8 | 4085061316 |
| 9 | 33782603954 |
| 10 | 279926794186 |
| 11 | 2322421227516 |
| 12 | 19283451490582 |
| 13 | 160195139697836 |
| 14 | 1331233306531628 |
| 15 | 11064915354343272 |
| 16 | 91981096183559616 |
| 17 | 764689232411236710 |
[2172,15246,117100,922890,7415658,60395332, 495518534,4085061316,33782603954,279926794186, 2322421227516,19283451490582,160195139697836, 1331233306531628,11064915354343272, 91981096183559616,764689232411236710] |