n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 8 |
4 | 23 |
5 | 67 |
6 | 197 |
7 | 582 |
8 | 1725 |
9 | 5124 |
10 | 15245 |
11 | 45412 |
12 | 135401 |
13 | 404015 |
14 | 1206247 |
15 | 3603230 |
16 | 10767855 |
17 | 32189931 |
18 | 96259221 |
19 | 287924196 |
20 | 861415809 |
21 | 2577711045 |
22 | 7714933851 |
23 | 23093949534 |
24 | 69139301043 |
25 | 207017139906 |
26 | 619921659303 |
27 | 1856572250112 |
[1,3,8,23,67,197,582,1725,5124,15245,45412,135401, 404015,1206247,3603230,10767855,32189931,96259221, 287924196,861415809,2577711045,7714933851, 23093949534,69139301043,207017139906,619921659303, 1856572250112] |