n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 1 |
3 | 7 |
4 | 13 |
5 | 55 |
6 | 133 |
7 | 463 |
8 | 1261 |
9 | 4039 |
10 | 11605 |
11 | 35839 |
12 | 105469 |
13 | 320503 |
14 | 953317 |
15 | 2876335 |
16 | 8596237 |
17 | 25854247 |
18 | 77431669 |
19 | 232557151 |
20 | 697147165 |
21 | 2092490071 |
22 | 6275373061 |
23 | 18830313487 |
24 | 56482551853 |
25 | 169464432775 |
26 | 508359743893 |
27 | 1525146340543 |
28 | 4575304803901 |
29 | 13726182847159 |
[0,1,1,7,13,55,133,463,1261,4039,11605,35839, 105469,320503,953317,2876335,8596237,25854247, 77431669,232557151,697147165,2092490071, 6275373061,18830313487,56482551853,169464432775, 508359743893,1525146340543,4575304803901, 13726182847159] |