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| n | a(n) |
|---|---|
| 1 | 28107 |
| 2 | 70590 |
| 3 | 583698 |
| 4 | 2351928 |
| 5 | 10966149 |
| 6 | 36766701 |
| 7 | 112645903 |
| 8 | 295452432 |
| 9 | 734787935 |
| 10 | 1658583509 |
| 11 | 3510427759 |
| 12 | 6967556836 |
| 13 | 13254580819 |
| 14 | 24069157677 |
| 15 | 42106383208 |
| 16 | 71123318652 |
| 17 | 116864959320 |
| 18 | 186850930571 |
| 19 | 291778710900 |
[28107,70590,583698,2351928,10966149,36766701, 112645903,295452432,734787935,1658583509, 3510427759,6967556836,13254580819,24069157677, 42106383208,71123318652,116864959320,186850930571, 291778710900] |