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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 16 |
| 3 | 98 |
| 4 | 791 |
| 5 | 6766 |
| 6 | 65094 |
| 7 | 786907 |
| 8 | 9855231 |
| 9 | 142116676 |
| 10 | 2459545057 |
| 11 | 46309750425 |
| 12 | 999589825419 |
| 13 | 26202502382134 |
| 14 | 768926273969151 |
| 15 | 25878896800392858 |
| 16 | 1098191860946291476 |
| 17 | 52205734467966457603 |
| 18 | 2867736141204451650414 |
[2,16,98,791,6766,65094,786907,9855231,142116676, 2459545057,46309750425,999589825419, 26202502382134,768926273969151,25878896800392858, 1098191860946291476,52205734467966457603, 2867736141204451650414] |