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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 68 |
| 3 | 1433 |
| 4 | 26157 |
| 5 | 425588 |
| 6 | 6559816 |
| 7 | 98128162 |
| 8 | 1427793365 |
| 9 | 20331614084 |
| 10 | 284582186755 |
| 11 | 3927098316740 |
| 12 | 53546568580206 |
| 13 | 722667680151302 |
| 14 | 9667043295761140 |
| 15 | 128315967227062823 |
| 16 | 1691593872181009527 |
[3,68,1433,26157,425588,6559816,98128162, 1427793365,20331614084,284582186755,3927098316740, 53546568580206,722667680151302,9667043295761140, 128315967227062823,1691593872181009527] |