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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 12 |
| 4 | 173 |
| 5 | 5429 |
| 6 | 392544 |
| 7 | 66961869 |
| 8 | 27094069322 |
| 9 | 26124568587557 |
| 10 | 60352331499840380 |
| 11 | 335377713005955826349 |
| 12 | 4494480789037552980419332 |
| 13 | 145516206571394421594063628243 |
| 14 | 11398373584242623552596178870957640 |
| 15 | 2162546126021822830176241418936795142991 |
[1,2,12,173,5429,392544,66961869,27094069322, 26124568587557,60352331499840380, 335377713005955826349,4494480789037552980419332, 145516206571394421594063628243, 11398373584242623552596178870957640, 2162546126021822830176241418936795142991] |