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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 8 |
| 3 | 36 |
| 4 | 128 |
| 5 | 600 |
| 6 | 1728 |
| 7 | 10584 |
| 8 | 32768 |
| 9 | 139968 |
| 10 | 480000 |
| 11 | 2640704 |
| 12 | 6635520 |
| 13 | 44717400 |
| 14 | 132765696 |
| 15 | 534600000 |
| 16 | 2147483648 |
| 17 | 11452896600 |
| 18 | 26121388032 |
| 19 | 183250539864 |
| 20 | 473702400000 |
| 21 | 2427720325632 |
| 22 | 8834232287232 |
| 23 | 45914084232320 |
| 24 | 109586090557440 |
| 25 | 656100000000000 |
[2,8,36,128,600,1728,10584,32768,139968,480000, 2640704,6635520,44717400,132765696,534600000, 2147483648,11452896600,26121388032,183250539864, 473702400000,2427720325632,8834232287232, 45914084232320,109586090557440,656100000000000] |