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| n | a(n) |
|---|---|
| 0 | 7 |
| 1 | 37 |
| 2 | 229 |
| 3 | 1633 |
| 4 | 13219 |
| 5 | 119917 |
| 6 | 1205857 |
| 7 | 13318249 |
| 8 | 160305343 |
| 9 | 2088846709 |
| 10 | 29297613277 |
| 11 | 440110297777 |
| 12 | 7050173910619 |
| 13 | 119970793032253 |
| 14 | 2161243124917849 |
| 15 | 41091937905633337 |
| 16 | 822320410135133047 |
| 17 | 17277401903869659589 |
| 18 | 380267691288777510613 |
| 19 | 8749454854573455141889 |
[7,37,229,1633,13219,119917,1205857,13318249, 160305343,2088846709,29297613277,440110297777, 7050173910619,119970793032253,2161243124917849, 41091937905633337,822320410135133047, 17277401903869659589,380267691288777510613, 8749454854573455141889] |