n | a(n) |
---|---|
5 | 2 |
6 | 5 |
7 | 16 |
8 | 55 |
9 | 208 |
10 | 817 |
11 | 3336 |
12 | 13935 |
13 | 59406 |
14 | 257079 |
15 | 1126948 |
16 | 4992421 |
17 | 22318048 |
18 | 100546543 |
19 | 456055730 |
20 | 2080872845 |
21 | 9544572590 |
22 | 43984730855 |
23 | 203550840696 |
24 | 945562887981 |
25 | 4407586685688 |
26 | 20609668887723 |
27 | 96646196091276 |
28 | 454402001079165 |
[2,5,16,55,208,817,3336,13935,59406,257079, 1126948,4992421,22318048,100546543,456055730, 2080872845,9544572590,43984730855,203550840696, 945562887981,4407586685688,20609668887723, 96646196091276,454402001079165] |