n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 7 |
3 | 16 |
4 | 41 |
5 | 98 |
6 | 239 |
7 | 576 |
8 | 1393 |
9 | 3362 |
10 | 8119 |
11 | 19600 |
12 | 47321 |
13 | 114242 |
14 | 275807 |
15 | 665856 |
16 | 1607521 |
17 | 3880898 |
18 | 9369319 |
19 | 22619536 |
20 | 54608393 |
21 | 131836322 |
22 | 318281039 |
23 | 768398400 |
24 | 1855077841 |
25 | 4478554082 |
26 | 10812186007 |
27 | 26102926096 |
28 | 63018038201 |
[1,2,7,16,41,98,239,576,1393,3362,8119,19600, 47321,114242,275807,665856,1607521,3880898, 9369319,22619536,54608393,131836322,318281039, 768398400,1855077841,4478554082,10812186007, 26102926096,63018038201] |