n | a(n) |
---|---|
1 | 1 |
2 | 4 |
3 | 11 |
4 | 27 |
5 | 70 |
6 | 182 |
7 | 483 |
8 | 1281 |
9 | 3389 |
10 | 8986 |
11 | 23818 |
12 | 63151 |
13 | 167404 |
14 | 443816 |
15 | 1176578 |
16 | 3119246 |
17 | 8269369 |
18 | 21922921 |
19 | 58119638 |
20 | 154080691 |
21 | 408482159 |
22 | 1082924551 |
23 | 2870933873 |
24 | 7611114236 |
25 | 20177774274 |
26 | 53493165081 |
27 | 141815376408 |
28 | 375965811006 |
[1,4,11,27,70,182,483,1281,3389,8986,23818,63151, 167404,443816,1176578,3119246,8269369,21922921, 58119638,154080691,408482159,1082924551, 2870933873,7611114236,20177774274,53493165081, 141815376408,375965811006] |