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| n | a(n) |
|---|---|
| 1 | 4 |
| 2 | 49 |
| 3 | 1000 |
| 4 | 28561 |
| 5 | 1048576 |
| 6 | 47045881 |
| 7 | 2494357888 |
| 8 | 208827064576 |
| 9 | 14507145975869 |
| 10 | 1125899906842624 |
| 11 | 96549157373046875 |
| 12 | 9065737908494995456 |
| 13 | 925103102315013629321 |
| 14 | 101938319743841411792896 |
[4,49,1000,28561,1048576,47045881,2494357888, 208827064576,14507145975869,1125899906842624, 96549157373046875,9065737908494995456, 925103102315013629321,101938319743841411792896] |