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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 43 |
| 3 | 965 |
| 4 | 26260 |
| 5 | 793559 |
| 6 | 25715833 |
| 7 | 875686727 |
| 8 | 30942995146 |
| 9 | 1125179561729 |
| 10 | 41860674073996 |
| 11 | 1586681151506804 |
| 12 | 61081201435584796 |
| 13 | 2382392690910289172 |
| 14 | 93969463115644112428 |
| 15 | 3742596382979058395348 |
[1,2,43,965,26260,793559,25715833,875686727, 30942995146,1125179561729,41860674073996, 1586681151506804,61081201435584796, 2382392690910289172,93969463115644112428, 3742596382979058395348] |