n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 21 |
4 | 105 |
5 | 553 |
6 | 3053 |
7 | 17405 |
8 | 101713 |
9 | 606033 |
10 | 3667797 |
11 | 22485477 |
12 | 139340985 |
13 | 871429497 |
14 | 5492959293 |
15 | 34862161869 |
16 | 222592918689 |
17 | 1428814897825 |
18 | 9215016141989 |
19 | 59684122637237 |
20 | 388045493943049 |
21 | 2531696701375689 |
22 | 16569559364596365 |
23 | 108758426952823709 |
[1,1,5,21,105,553,3053,17405,101713,606033, 3667797,22485477,139340985,871429497,5492959293, 34862161869,222592918689,1428814897825, 9215016141989,59684122637237,388045493943049, 2531696701375689,16569559364596365, 108758426952823709] |