n | a(n) |
---|---|
0 | 0 |
1 | 2 |
2 | 1 |
3 | 6 |
4 | 12 |
5 | 35 |
6 | 88 |
7 | 234 |
8 | 609 |
9 | 1598 |
10 | 4180 |
11 | 10947 |
12 | 28656 |
13 | 75026 |
14 | 196417 |
15 | 514230 |
16 | 1346268 |
17 | 3524579 |
18 | 9227464 |
19 | 24157818 |
20 | 63245985 |
21 | 165580142 |
22 | 433494436 |
23 | 1134903171 |
24 | 2971215072 |
25 | 7778742050 |
26 | 20365011073 |
27 | 53316291174 |
28 | 139583862444 |
29 | 365435296163 |
30 | 956722026040 |
31 | 2504730781962 |
[0,2,1,6,12,35,88,234,609,1598,4180,10947,28656, 75026,196417,514230,1346268,3524579,9227464, 24157818,63245985,165580142,433494436,1134903171, 2971215072,7778742050,20365011073,53316291174, 139583862444,365435296163,956722026040, 2504730781962] |