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| n | a(n) |
|---|---|
| 1 | 2540 |
| 2 | 38236 |
| 3 | 578080 |
| 4 | 9552088 |
| 5 | 160156724 |
| 6 | 2732474648 |
| 7 | 46838063500 |
| 8 | 805631496848 |
| 9 | 13873456358988 |
| 10 | 239079417935660 |
| 11 | 4121153439939600 |
| 12 | 71049641967894584 |
| 13 | 1224988034617402112 |
| 14 | 21121099804239729456 |
| 15 | 364172469147540913848 |
[2540,38236,578080,9552088,160156724,2732474648, 46838063500,805631496848,13873456358988, 239079417935660,4121153439939600, 71049641967894584,1224988034617402112, 21121099804239729456,364172469147540913848] |