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| n | a(n) |
|---|---|
| 0 | 16777216 |
| 1 | 8916100448256 |
| 2 | 4096000000000000 |
| 3 | 232218265089212416 |
| 4 | 4738381338321616896 |
| 5 | 52654090776777588736 |
| 6 | 390877006486250192896 |
| 7 | 2176782336000000000000 |
| 8 | 9774779120406941925376 |
| 9 | 37133262473195501387776 |
| 10 | 123410307017276135571456 |
| 11 | 367666387654882241806336 |
[16777216,8916100448256,4096000000000000, 232218265089212416,4738381338321616896, 52654090776777588736,390877006486250192896, 2176782336000000000000,9774779120406941925376, 37133262473195501387776,123410307017276135571456, 367666387654882241806336] |