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| n | a(n) |
|---|---|
| 1 | 15 |
| 2 | 795 |
| 3 | 150501 |
| 4 | 101638401 |
| 5 | 244923340737 |
| 6 | 2105900715375957 |
| 7 | 64607710656824916891 |
| 8 | 7072434599436128908889787 |
| 9 | 2762433091820721094887987355053 |
| 10 | 3849929838909014980590084143791140141 |
[15,795,150501,101638401,244923340737, 2105900715375957,64607710656824916891, 7072434599436128908889787, 2762433091820721094887987355053, 3849929838909014980590084143791140141] |