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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 7 |
| 2 | 85 |
| 3 | 1531 |
| 4 | 36745 |
| 5 | 1102351 |
| 6 | 39684637 |
| 7 | 1666754755 |
| 8 | 80004228241 |
| 9 | 4320228325015 |
| 10 | 259213699500901 |
| 11 | 17108104167059467 |
| 12 | 1231783500028281625 |
| 13 | 96079113002205966751 |
| 14 | 8070645492185301207085 |
| 15 | 726358094296677108637651 |
[1,7,85,1531,36745,1102351,39684637,1666754755, 80004228241,4320228325015,259213699500901, 17108104167059467,1231783500028281625, 96079113002205966751,8070645492185301207085, 726358094296677108637651] |