n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 3 |
3 | 7 |
4 | 19 |
5 | 53 |
6 | 153 |
7 | 451 |
8 | 1339 |
9 | 3997 |
10 | 11961 |
11 | 35835 |
12 | 107435 |
13 | 322197 |
14 | 966425 |
15 | 2899027 |
16 | 8696699 |
17 | 26089517 |
18 | 78267673 |
19 | 234801675 |
20 | 704402987 |
21 | 2113205861 |
22 | 6339612857 |
23 | 19018831395 |
24 | 57056483259 |
25 | 171169433149 |
26 | 513508274169 |
27 | 1540524784027 |
28 | 4621574293547 |
29 | 13864722791605 |
30 | 41594168239321 |
[0,1,3,7,19,53,153,451,1339,3997,11961,35835, 107435,322197,966425,2899027,8696699,26089517, 78267673,234801675,704402987,2113205861, 6339612857,19018831395,57056483259,171169433149, 513508274169,1540524784027,4621574293547, 13864722791605,41594168239321] |