n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 11 |
4 | 51 |
5 | 159 |
6 | 715 |
7 | 2481 |
8 | 11325 |
9 | 41821 |
10 | 192007 |
11 | 737257 |
12 | 3411795 |
13 | 13471713 |
14 | 62670875 |
15 | 252326759 |
16 | 1179837765 |
17 | 4828186997 |
18 | 22652634461 |
19 | 93834192877 |
20 | 441735525933 |
21 | 1849484581727 |
22 | 8727042047851 |
23 | 36848287161913 |
24 | 174283333955443 |
25 | 741510358902935 |
26 | 3513143608766455 |
27 | 15040368579197489 |
[1,1,5,11,51,159,715,2481,11325,41821,192007, 737257,3411795,13471713,62670875,252326759, 1179837765,4828186997,22652634461,93834192877, 441735525933,1849484581727,8727042047851, 36848287161913,174283333955443,741510358902935, 3513143608766455,15040368579197489] |