n | a(n) |
---|---|
1 | 2 |
2 | 2 |
3 | 3 |
4 | 9 |
5 | 27 |
6 | 93 |
7 | 317 |
8 | 1148 |
9 | 4203 |
10 | 15781 |
11 | 60066 |
12 | 231968 |
13 | 905301 |
14 | 3567982 |
15 | 14175319 |
16 | 56722193 |
17 | 228380002 |
18 | 924598874 |
19 | 3761536993 |
20 | 15370095298 |
21 | 63051505041 |
22 | 259573763572 |
23 | 1072091242996 |
24 | 4441058718736 |
[2,2,3,9,27,93,317,1148,4203,15781,60066,231968, 905301,3567982,14175319,56722193,228380002, 924598874,3761536993,15370095298,63051505041, 259573763572,1072091242996,4441058718736] |