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| n | a(n) |
|---|---|
| 0 | 6 |
| 1 | 496 |
| 2 | 33550336 |
| 3 | 137438691328 |
| 4 | 2658455991569831744654692615953842176 |
| 5 | 13164036458569648337239753460458722910223472318386943117783728128 |
[6,496,33550336,137438691328, 2658455991569831744654692615953842176, 13164036458569648337239753460458722910223472318386\ 943117783728128] |