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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 141 |
| 3 | 28681 |
| 4 | 7100821 |
| 5 | 1825913781 |
| 6 | 511508441781 |
| 7 | 152303757391521 |
| 8 | 47436084817844661 |
| 9 | 15293664515956438501 |
| 10 | 5069664274447290501601 |
| 11 | 1719264773436264439137501 |
| 12 | 594239211348093910990313341 |
[1,141,28681,7100821,1825913781,511508441781, 152303757391521,47436084817844661, 15293664515956438501,5069664274447290501601, 1719264773436264439137501, 594239211348093910990313341] |