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| n | a(n) |
|---|---|
| 1 | 66 |
| 2 | 780 |
| 3 | 10496 |
| 4 | 139552 |
| 5 | 1905248 |
| 6 | 25615364 |
| 7 | 350374768 |
| 8 | 4718334196 |
| 9 | 64553618848 |
| 10 | 869537910656 |
| 11 | 11896879751308 |
| 12 | 160257988295804 |
| 13 | 2192633026299036 |
| 14 | 29536279905976948 |
| 15 | 404112522712546100 |
| 16 | 5443681701489022792 |
[66,780,10496,139552,1905248,25615364,350374768, 4718334196,64553618848,869537910656, 11896879751308,160257988295804,2192633026299036, 29536279905976948,404112522712546100, 5443681701489022792] |