n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 9 |
6 | 13 |
7 | 35 |
8 | 63 |
9 | 2283 |
10 | 5585 |
11 | 180293 |
12 | 562375 |
13 | 23209995 |
14 | 88508965 |
15 | 13019468881 |
16 | 63861201843 |
17 | 14755196146889 |
18 | 90930193025577 |
19 | 44655947502046605 |
20 | 347179958945954717 |
[1,1,1,1,9,13,35,63,2283,5585,180293,562375, 23209995,88508965,13019468881,63861201843, 14755196146889,90930193025577,44655947502046605, 347179958945954717] |