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| n | a(n) |
|---|---|
| 1 | 537 |
| 2 | 8345 |
| 3 | 113391 |
| 4 | 1383617 |
| 5 | 15633605 |
| 6 | 165947729 |
| 7 | 1680360507 |
| 8 | 16368643767 |
| 9 | 154629524369 |
| 10 | 1423864504941 |
| 11 | 12838948846501 |
| 12 | 113734761931057 |
| 13 | 992623171694623 |
| 14 | 8553532264219381 |
| 15 | 72908918920145825 |
| 16 | 615658688491607859 |
[537,8345,113391,1383617,15633605,165947729, 1680360507,16368643767,154629524369,1423864504941, 12838948846501,113734761931057,992623171694623, 8553532264219381,72908918920145825, 615658688491607859] |