n | a(n) |
---|---|
0 | 5 |
1 | 6 |
2 | 10 |
3 | 24 |
4 | 70 |
5 | 216 |
6 | 664 |
7 | 2008 |
8 | 5998 |
9 | 17808 |
10 | 52770 |
11 | 156360 |
12 | 463492 |
13 | 1374392 |
14 | 4076222 |
15 | 12090144 |
16 | 35859742 |
17 | 106359928 |
18 | 315460168 |
19 | 935639768 |
20 | 2775057510 |
21 | 8230670416 |
22 | 24411730298 |
23 | 72403913480 |
24 | 214746249796 |
25 | 636926269816 |
[5,6,10,24,70,216,664,2008,5998,17808,52770, 156360,463492,1374392,4076222,12090144,35859742, 106359928,315460168,935639768,2775057510, 8230670416,24411730298,72403913480,214746249796, 636926269816] |