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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | 64 |
| 2 | 2336 |
| 3 | 99328 |
| 4 | 4840832 |
| 5 | 267080704 |
| 6 | 16467255296 |
| 7 | 1123220758528 |
| 8 | 83995566282752 |
| 9 | 6835730843582464 |
| 10 | 601493660302278656 |
| 11 | 56912420061511548928 |
| 12 | 5762378580637148905472 |
| 13 | 621705383408527748890624 |
| 14 | 71206666963479522492809216 |
[2,64,2336,99328,4840832,267080704,16467255296, 1123220758528,83995566282752,6835730843582464, 601493660302278656,56912420061511548928, 5762378580637148905472,621705383408527748890624, 71206666963479522492809216] |