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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 7701 |
| 3 | 219781 |
| 4 | 1789106881 |
| 5 | 51059956641 |
| 6 | 415648888795141 |
| 7 | 11862351246525781 |
| 8 | 96564381140875635681 |
| 9 | 2755885166244302532001 |
| 10 | 22434030154994860543881301 |
| 11 | 640252753580346501593005701 |
| 12 | 5211918753572151610134715970401 |
| 13 | 148744800214537374776845967930881 |
[1,7701,219781,1789106881,51059956641, 415648888795141,11862351246525781, 96564381140875635681,2755885166244302532001, 22434030154994860543881301, 640252753580346501593005701, 5211918753572151610134715970401, 148744800214537374776845967930881] |