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| n | a(n) |
|---|---|
| 1 | 3136 |
| 2 | 21436 |
| 3 | 123016 |
| 4 | 626416 |
| 5 | 2955136 |
| 6 | 13263136 |
| 7 | 57570016 |
| 8 | 244213216 |
| 9 | 1019415136 |
| 10 | 4206874336 |
| 11 | 17218194016 |
| 12 | 70050978016 |
| 13 | 283750743136 |
| 14 | 1145667917536 |
| 15 | 4614715410016 |
| 16 | 18555090670816 |
| 17 | 74509245399136 |
| 18 | 298904020992736 |
[3136,21436,123016,626416,2955136,13263136, 57570016,244213216,1019415136,4206874336, 17218194016,70050978016,283750743136, 1145667917536,4614715410016,18555090670816, 74509245399136,298904020992736] |