| n | a(n) |
|---|---|
| 1 | 166 |
| 2 | 1001 |
| 3 | 6086 |
| 4 | 36522 |
| 5 | 219755 |
| 6 | 1323027 |
| 7 | 7962992 |
| 8 | 47928592 |
| 9 | 288482790 |
| 10 | 1736374118 |
| 11 | 10451212777 |
| 12 | 62905729186 |
| 13 | 378628840855 |
| 14 | 2278962509607 |
| 15 | 13717048411662 |
| 16 | 82562752244975 |
| 17 | 496944229784914 |
| 18 | 2991101444785801 |
[166,1001,6086,36522,219755,1323027,7962992, 47928592,288482790,1736374118,10451212777, 62905729186,378628840855,2278962509607, 13717048411662,82562752244975,496944229784914, 2991101444785801] |