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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 5 |
| 2 | 418 |
| 3 | 97248 |
| 4 | 44494788 |
| 5 | 33701146040 |
| 6 | 38158722166012 |
| 7 | 60370440881763184 |
| 8 | 127193089522406873576 |
| 9 | 344265367844128036044688 |
| 10 | 1164086577885251318385747568 |
| 11 | 4808913945776510766505317067088 |
| 12 | 23831677319262549731059823149874928 |
| 13 | 139543211306816620890086979219586374480 |
| 14 | 953076439362156646686630002626476525309552 |
[1,5,418,97248,44494788,33701146040, 38158722166012,60370440881763184, 127193089522406873576,344265367844128036044688, 1164086577885251318385747568, 4808913945776510766505317067088, 23831677319262549731059823149874928, 139543211306816620890086979219586374480, 953076439362156646686630002626476525309552] |