Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 1 |
3 | 0 |
4 | 1 |
5 | 0 |
6 | 1 |
7 | 1 |
8 | 4 |
9 | 5 |
10 | 9 |
11 | 15 |
12 | 26 |
13 | 45 |
14 | 77 |
15 | 137 |
16 | 243 |
17 | 434 |
18 | 774 |
19 | 1408 |
20 | 2554 |
21 | 4667 |
22 | 8627 |
23 | 15927 |
24 | 29559 |
25 | 54867 |
26 | 101688 |
27 | 189425 |
28 | 355315 |
29 | 668598 |
30 | 1264180 |
31 | 2395462 |
32 | 4506221 |
33 | 8507311 |
34 | 16084405 |
35 | 30545142 |
36 | 57898862 |
37 | 110199367 |
38 | 209957460 |
39 | 400430494 |
40 | 765333684 |
[1,0,1,0,1,0,1,1,4,5,9,15,26,45,77,137,243,434, 774,1408,2554,4667,8627,15927,29559,54867,101688, 189425,355315,668598,1264180,2395462,4506221, 8507311,16084405,30545142,57898862,110199367, 209957460,400430494,765333684] |