n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 3 |
4 | 10 |
5 | 42 |
6 | 202 |
7 | 1146 |
8 | 7493 |
9 | 56996 |
10 | 508609 |
11 | 5414635 |
12 | 70214227 |
13 | 1134439731 |
14 | 23331152887 |
15 | 621768153861 |
16 | 21761221300058 |
17 | 1009759125475973 |
18 | 62534859409597022 |
19 | 5193886959561972984 |
20 | 580677490292990902682 |
21 | 87649885799470898359728 |
22 | 17907726747155924589913398 |
[1,1,1,3,10,42,202,1146,7493,56996,508609,5414635, 70214227,1134439731,23331152887,621768153861, 21761221300058,1009759125475973,62534859409597022, 5193886959561972984,580677490292990902682, 87649885799470898359728, 17907726747155924589913398] |