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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 47 |
| 2 | 2301 |
| 3 | 112747 |
| 4 | 5524601 |
| 5 | 270705447 |
| 6 | 13264566901 |
| 7 | 649963778147 |
| 8 | 31848225129201 |
| 9 | 1560563031330847 |
| 10 | 76467588535211501 |
| 11 | 3746911838225363547 |
| 12 | 183598680073042813801 |
| 13 | 8996335323579097876247 |
| 14 | 440820430855375795936101 |
| 15 | 21600201111913414000868947 |
[1,47,2301,112747,5524601,270705447,13264566901, 649963778147,31848225129201,1560563031330847, 76467588535211501,3746911838225363547, 183598680073042813801,8996335323579097876247, 440820430855375795936101, 21600201111913414000868947] |