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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 29 |
| 4 | 901 |
| 5 | 89893 |
| 6 | 28793575 |
| 7 | 29607089625 |
| 8 | 97725875584681 |
| 9 | 1035449388414303593 |
| 10 | 35216739783694029601963 |
| 11 | 3844747107219467355553841461 |
| 12 | 1347358497824862447450096142795629 |
| 13 | 1515633798331963142551890627742773295309 |
[1,1,3,29,901,89893,28793575,29607089625, 97725875584681,1035449388414303593, 35216739783694029601963, 3844747107219467355553841461, 1347358497824862447450096142795629, 1515633798331963142551890627742773295309] |