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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 8 |
| 3 | 144 |
| 4 | 4096 |
| 5 | 160000 |
| 6 | 7962624 |
| 7 | 481890304 |
| 8 | 34359738368 |
| 9 | 2821109907456 |
| 10 | 262144000000000 |
| 11 | 27197360938418176 |
| 12 | 3116402981210161152 |
| 13 | 390877006486250192896 |
| 14 | 53265296773103187132416 |
| 15 | 7836416409600000000000000 |
| 16 | 1237940039285380274899124224 |
| 17 | 208998227690370098316628197376 |
[0,1,8,144,4096,160000,7962624,481890304, 34359738368,2821109907456,262144000000000, 27197360938418176,3116402981210161152, 390877006486250192896,53265296773103187132416, 7836416409600000000000000, 1237940039285380274899124224, 208998227690370098316628197376] |