| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 15 |
| 3 | 119 |
| 4 | 1799 |
| 5 | 59367 |
| 6 | 3743271 |
| 7 | 481693095 |
| 8 | 123123509927 |
| 9 | 62989418816679 |
| 10 | 64491023022979239 |
| 11 | 132015402419352060071 |
| 12 | 540829047855347718631591 |
| 13 | 4430403202865824763042320551 |
| 14 | 72583450474242118015031400337575 |
| 15 | 2378466805556971511916001231449723047 |
[1,3,15,119,1799,59367,3743271,481693095, 123123509927,62989418816679,64491023022979239, 132015402419352060071,540829047855347718631591, 4430403202865824763042320551, 72583450474242118015031400337575, 2378466805556971511916001231449723047] |