| n | a(n) |
|---|---|
| 1 | 8 |
| 2 | 65 |
| 3 | 302 |
| 4 | 1597 |
| 5 | 8598 |
| 6 | 46955 |
| 7 | 258241 |
| 8 | 1422755 |
| 9 | 7843425 |
| 10 | 43248130 |
| 11 | 238491830 |
| 12 | 1315207719 |
| 13 | 7253029882 |
| 14 | 39998826834 |
| 15 | 220584887411 |
| 16 | 1216478628291 |
| 17 | 6708622719753 |
| 18 | 36996640542547 |
| 19 | 204028682917674 |
| 20 | 1125175254860635 |
[8,65,302,1597,8598,46955,258241,1422755,7843425, 43248130,238491830,1315207719,7253029882, 39998826834,220584887411,1216478628291, 6708622719753,36996640542547,204028682917674, 1125175254860635] |