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| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 25 |
| 3 | 257 |
| 4 | 6145 |
| 5 | 262145 |
| 6 | 25165825 |
| 7 | 4294967297 |
| 8 | 1649267441665 |
| 9 | 1125899906842625 |
| 10 | 1729382256910270465 |
| 11 | 4722366482869645213697 |
| 12 | 29014219670751100192948225 |
| 13 | 316912650057057350374175801345 |
| 14 | 7788445287802241442795744493830145 |
[5,25,257,6145,262145,25165825,4294967297, 1649267441665,1125899906842625, 1729382256910270465,4722366482869645213697, 29014219670751100192948225, 316912650057057350374175801345, 7788445287802241442795744493830145] |