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| n | a(n) |
|---|---|
| 1 | 11 |
| 2 | 37 |
| 3 | 67 |
| 4 | 4099 |
| 5 | 32771 |
| 6 | 262147 |
| 7 | 268435463 |
| 8 | 1073741827 |
| 9 | 36028797018963979 |
| 10 | 18889465931478580854821 |
| 11 | 151115727451828646838283 |
| 12 | 19342813113834066795298819 |
| 13 | 618970019642690137449562201 |
| 14 | 316912650057057350374175801351 |
| 15 | 85070591730234615865843651857942052871 |
[11,37,67,4099,32771,262147,268435463,1073741827, 36028797018963979,18889465931478580854821, 151115727451828646838283, 19342813113834066795298819, 618970019642690137449562201, 316912650057057350374175801351, 85070591730234615865843651857942052871] |