n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 7 |
4 | 21 |
5 | 51 |
6 | 148 |
7 | 365 |
8 | 983 |
9 | 2461 |
10 | 6360 |
11 | 15687 |
12 | 39757 |
13 | 97033 |
14 | 240425 |
15 | 582622 |
16 | 1421273 |
17 | 3409861 |
18 | 8222920 |
19 | 19565707 |
20 | 46680362 |
21 | 110309476 |
22 | 260876036 |
23 | 612293443 |
24 | 1437616751 |
25 | 3354111156 |
26 | 7823501148 |
27 | 18157700800 |
28 | 42112132458 |
[1,3,7,21,51,148,365,983,2461,6360,15687,39757, 97033,240425,582622,1421273,3409861,8222920, 19565707,46680362,110309476,260876036,612293443, 1437616751,3354111156,7823501148,18157700800, 42112132458] |