n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 2 |
3 | 4 |
4 | 9 |
5 | 19 |
6 | 41 |
7 | 88 |
8 | 189 |
9 | 406 |
10 | 872 |
11 | 1873 |
12 | 4023 |
13 | 8641 |
14 | 18560 |
15 | 39865 |
16 | 85626 |
17 | 183916 |
18 | 395033 |
19 | 848491 |
20 | 1822473 |
21 | 3914488 |
22 | 8407925 |
23 | 18059374 |
24 | 38789712 |
25 | 83316385 |
26 | 178955183 |
27 | 384377665 |
28 | 825604416 |
29 | 1773314929 |
30 | 3808901426 |
[0,1,2,4,9,19,41,88,189,406,872,1873,4023,8641, 18560,39865,85626,183916,395033,848491,1822473, 3914488,8407925,18059374,38789712,83316385, 178955183,384377665,825604416,1773314929, 3808901426] |