n | a(n) |
---|---|
4 | 1 |
5 | 5 |
6 | 21 |
7 | 78 |
8 | 292 |
9 | 1028 |
10 | 3691 |
11 | 13004 |
12 | 46452 |
13 | 165098 |
14 | 595386 |
15 | 2148830 |
16 | 7861261 |
17 | 28880866 |
18 | 107407411 |
19 | 401862116 |
20 | 1520528499 |
21 | 5791624015 |
22 | 22288596981 |
23 | 86362655462 |
24 | 337798945830 |
25 | 1330195410257 |
26 | 5283145735982 |
27 | 21119637660235 |
28 | 85089563602538 |
29 | 344934335418331 |
[1,5,21,78,292,1028,3691,13004,46452,165098, 595386,2148830,7861261,28880866,107407411, 401862116,1520528499,5791624015,22288596981, 86362655462,337798945830,1330195410257, 5283145735982,21119637660235,85089563602538, 344934335418331] |