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| n | a(n) |
|---|---|
| 5 | 420 |
| 6 | 14065 |
| 7 | 256116 |
| 8 | 3392843 |
| 9 | 36703824 |
| 10 | 344468530 |
| 11 | 2908358552 |
| 12 | 22620890127 |
| 13 | 164767964504 |
| 14 | 1137369687454 |
| 15 | 7506901051000 |
| 16 | 47700234551918 |
| 17 | 293370096957504 |
| 18 | 1753945289216484 |
| 19 | 10229201477344752 |
| 20 | 58364244137596695 |
| 21 | 326571194881454376 |
| 22 | 1795631576981016038 |
| 23 | 9718877491130813368 |
| 24 | 51858415558095569962 |
[420,14065,256116,3392843,36703824,344468530, 2908358552,22620890127,164767964504,1137369687454, 7506901051000,47700234551918,293370096957504, 1753945289216484,10229201477344752, 58364244137596695,326571194881454376, 1795631576981016038,9718877491130813368, 51858415558095569962] |