n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 5 |
4 | 21 |
5 | 69 |
6 | 319 |
7 | 1957 |
8 | 12513 |
9 | 85445 |
10 | 656771 |
11 | 5591277 |
12 | 51531405 |
13 | 509874417 |
14 | 5438826975 |
15 | 62000480093 |
16 | 752464463029 |
17 | 9685138399785 |
18 | 131777883431119 |
[1,1,3,5,21,69,319,1957,12513,85445,656771, 5591277,51531405,509874417,5438826975,62000480093, 752464463029,9685138399785,131777883431119] |