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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 137 |
| 3 | 2856 |
| 4 | 66077 |
| 5 | 1534835 |
| 6 | 36054361 |
| 7 | 849482126 |
| 8 | 20037479191 |
| 9 | 472778990849 |
| 10 | 11155734923302 |
| 11 | 263229189709284 |
| 12 | 6210988381194727 |
| 13 | 146547761557950631 |
| 14 | 3457733626802911867 |
| 15 | 81582980136833112390 |
| 16 | 1924884328527038591459 |
[1,137,2856,66077,1534835,36054361,849482126, 20037479191,472778990849,11155734923302, 263229189709284,6210988381194727, 146547761557950631,3457733626802911867, 81582980136833112390,1924884328527038591459] |