n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 1 |
3 | 1 |
4 | 2 |
5 | 4 |
6 | 6 |
7 | 9 |
8 | 15 |
9 | 25 |
10 | 40 |
11 | 64 |
12 | 104 |
13 | 169 |
14 | 273 |
15 | 441 |
16 | 714 |
17 | 1156 |
18 | 1870 |
19 | 3025 |
20 | 4895 |
21 | 7921 |
22 | 12816 |
23 | 20736 |
24 | 33552 |
25 | 54289 |
26 | 87841 |
27 | 142129 |
28 | 229970 |
29 | 372100 |
30 | 602070 |
31 | 974169 |
32 | 1576239 |
33 | 2550409 |
34 | 4126648 |
35 | 6677056 |
36 | 10803704 |
37 | 17480761 |
38 | 28284465 |
39 | 45765225 |
40 | 74049690 |
[0,1,1,1,2,4,6,9,15,25,40,64,104,169,273,441,714, 1156,1870,3025,4895,7921,12816,20736,33552,54289, 87841,142129,229970,372100,602070,974169,1576239, 2550409,4126648,6677056,10803704,17480761, 28284465,45765225,74049690] |