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| n | a(n) |
|---|---|
| 1 | 2320 |
| 2 | 28724 |
| 3 | 377568 |
| 4 | 5079336 |
| 5 | 69574220 |
| 6 | 962953968 |
| 7 | 13444055224 |
| 8 | 188823193784 |
| 9 | 2664428266336 |
| 10 | 37723583696052 |
| 11 | 535447018219820 |
| 12 | 7614062720813020 |
| 13 | 108418400331562368 |
| 14 | 1545312836738950012 |
| 15 | 22041527502028941280 |
[2320,28724,377568,5079336,69574220,962953968, 13444055224,188823193784,2664428266336, 37723583696052,535447018219820,7614062720813020, 108418400331562368,1545312836738950012, 22041527502028941280] |