n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 1 |
3 | 1 |
4 | 2 |
5 | 2 |
6 | 5 |
7 | 7 |
8 | 14 |
9 | 21 |
10 | 42 |
11 | 66 |
12 | 132 |
13 | 214 |
14 | 429 |
15 | 715 |
16 | 1430 |
17 | 2431 |
18 | 4862 |
19 | 8398 |
20 | 16796 |
21 | 29393 |
22 | 58786 |
23 | 104006 |
24 | 208012 |
25 | 371450 |
26 | 742900 |
27 | 1337220 |
28 | 2674440 |
29 | 4847422 |
30 | 9694845 |
31 | 17678835 |
32 | 35357670 |
33 | 64822395 |
34 | 129644790 |
35 | 238819350 |
36 | 477638700 |
37 | 883631595 |
38 | 1767263190 |
[1,0,1,1,2,2,5,7,14,21,42,66,132,214,429,715,1430, 2431,4862,8398,16796,29393,58786,104006,208012, 371450,742900,1337220,2674440,4847422,9694845, 17678835,35357670,64822395,129644790,238819350, 477638700,883631595,1767263190] |