n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 3 |
3 | 10 |
4 | 34 |
5 | 114 |
6 | 374 |
7 | 1202 |
8 | 3798 |
9 | 11842 |
10 | 36550 |
11 | 111954 |
12 | 340982 |
13 | 1034210 |
14 | 3127206 |
15 | 9434866 |
16 | 28419286 |
17 | 85503618 |
18 | 257035142 |
19 | 772219538 |
20 | 2319017910 |
21 | 6962034466 |
22 | 20896589158 |
23 | 62711787570 |
24 | 188181500054 |
25 | 564640969154 |
[0,1,3,10,34,114,374,1202,3798,11842,36550,111954, 340982,1034210,3127206,9434866,28419286,85503618, 257035142,772219538,2319017910,6962034466, 20896589158,62711787570,188181500054,564640969154] |