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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 6 |
| 3 | 38 |
| 4 | 526 |
| 5 | 12022 |
| 6 | 376430 |
| 7 | 14821942 |
| 8 | 700501294 |
| 9 | 38564486966 |
| 10 | 2421312598894 |
| 11 | 170655141398326 |
| 12 | 13336218401711534 |
| 13 | 1144162670908970806 |
| 14 | 106893046255965640174 |
| 15 | 10800877688088297157430 |
| 16 | 1173551859231328950561838 |
| 17 | 136431643427143746045393718 |
[2,6,38,526,12022,376430,14821942,700501294, 38564486966,2421312598894,170655141398326, 13336218401711534,1144162670908970806, 106893046255965640174,10800877688088297157430, 1173551859231328950561838, 136431643427143746045393718] |