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| n | a(n) |
|---|---|
| 2 | 1 |
| 3 | 135 |
| 4 | 5478 |
| 5 | 165826 |
| 6 | 4494351 |
| 7 | 116294673 |
| 8 | 2949965020 |
| 9 | 74197080276 |
| 10 | 1859539731885 |
| 11 | 46535238000235 |
| 12 | 1163848723925346 |
| 13 | 29100851707716150 |
| 14 | 727566807977891803 |
| 15 | 18189614152200873621 |
| 16 | 454744658216502193656 |
[1,135,5478,165826,4494351,116294673,2949965020, 74197080276,1859539731885,46535238000235, 1163848723925346,29100851707716150, 727566807977891803,18189614152200873621, 454744658216502193656] |