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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 35 |
| 3 | 1165 |
| 4 | 57635 |
| 5 | 3752605 |
| 6 | 303606755 |
| 7 | 29378525725 |
| 8 | 3309861378275 |
| 9 | 425596952957725 |
| 10 | 61508547037160675 |
| 11 | 9870475998287280925 |
| 12 | 1741469465493922587875 |
| 13 | 335054673129161821412125 |
| 14 | 69814770455871991714587875 |
| 15 | 15662452678474786707959012125 |
| 16 | 3764014801927115965888623387875 |
[1,1,35,1165,57635,3752605,303606755,29378525725, 3309861378275,425596952957725,61508547037160675, 9870475998287280925,1741469465493922587875, 335054673129161821412125, 69814770455871991714587875, 15662452678474786707959012125, 3764014801927115965888623387875] |