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| n | a(n) |
|---|---|
| 1 | 360 |
| 2 | 2716 |
| 3 | 20416 |
| 4 | 153752 |
| 5 | 1157728 |
| 6 | 8726336 |
| 7 | 65777344 |
| 8 | 496308128 |
| 9 | 3744934912 |
| 10 | 28286490944 |
| 11 | 213660702976 |
| 12 | 1615562611712 |
| 13 | 12215896488448 |
| 14 | 92467959109376 |
| 15 | 699922909794304 |
| 16 | 5303754118235648 |
| 17 | 40188257800148992 |
| 18 | 304858331817979904 |
[360,2716,20416,153752,1157728,8726336,65777344, 496308128,3744934912,28286490944,213660702976, 1615562611712,12215896488448,92467959109376, 699922909794304,5303754118235648, 40188257800148992,304858331817979904] |