n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 1 |
4 | 0 |
5 | 0 |
6 | 0 |
7 | 1 |
8 | 2 |
9 | 4 |
10 | 8 |
11 | 15 |
12 | 30 |
13 | 60 |
14 | 120 |
15 | 239 |
16 | 476 |
17 | 948 |
18 | 1888 |
19 | 3761 |
20 | 7492 |
21 | 14924 |
22 | 29728 |
23 | 59217 |
24 | 117958 |
25 | 234968 |
26 | 468048 |
27 | 932335 |
28 | 1857178 |
29 | 3699432 |
30 | 7369136 |
31 | 14679055 |
32 | 29240152 |
33 | 58245336 |
34 | 116022624 |
35 | 231112913 |
36 | 460368648 |
37 | 917037864 |
38 | 1826706592 |
39 | 3638734129 |
[0,0,0,1,0,0,0,1,2,4,8,15,30,60,120,239,476,948, 1888,3761,7492,14924,29728,59217,117958,234968, 468048,932335,1857178,3699432,7369136,14679055, 29240152,58245336,116022624,231112913,460368648, 917037864,1826706592,3638734129] |