n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 0 |
3 | 0 |
4 | 1 |
5 | 2 |
6 | 3 |
7 | 6 |
8 | 10 |
9 | 19 |
10 | 33 |
11 | 62 |
12 | 118 |
13 | 208 |
14 | 409 |
15 | 740 |
16 | 1418 |
17 | 2676 |
18 | 5043 |
19 | 9638 |
20 | 18248 |
21 | 34949 |
22 | 66752 |
23 | 127880 |
24 | 245489 |
25 | 472113 |
26 | 908302 |
27 | 1751624 |
28 | 3381546 |
29 | 6534616 |
30 | 12645372 |
31 | 24490255 |
32 | 47485123 |
33 | 92152929 |
34 | 178987716 |
35 | 347943866 |
36 | 676925069 |
37 | 1317911597 |
38 | 2567659990 |
39 | 5005877954 |
40 | 9765539069 |
41 | 19062301793 |
42 | 37230980158 |
43 | 72756216207 |
44 | 142253989491 |
45 | 278275735952 |
46 | 544621563320 |
47 | 1066382258001 |
[0,1,0,0,1,2,3,6,10,19,33,62,118,208,409,740,1418, 2676,5043,9638,18248,34949,66752,127880,245489, 472113,908302,1751624,3381546,6534616,12645372, 24490255,47485123,92152929,178987716,347943866, 676925069,1317911597,2567659990,5005877954, 9765539069,19062301793,37230980158,72756216207, 142253989491,278275735952,544621563320, 1066382258001] |