n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 5 |
4 | 14 |
5 | 41 |
6 | 121 |
7 | 356 |
8 | 1044 |
9 | 3057 |
10 | 8948 |
11 | 26192 |
12 | 76674 |
13 | 224465 |
14 | 657137 |
15 | 1923817 |
16 | 5632105 |
17 | 16488346 |
18 | 48270655 |
19 | 141315320 |
20 | 413709331 |
21 | 1211159679 |
22 | 3545745012 |
23 | 10380388294 |
24 | 30389230117 |
25 | 88966354626 |
26 | 260454516946 |
27 | 762496740130 |
[1,2,5,14,41,121,356,1044,3057,8948,26192,76674, 224465,657137,1923817,5632105,16488346,48270655, 141315320,413709331,1211159679,3545745012, 10380388294,30389230117,88966354626,260454516946, 762496740130] |