n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 1 |
6 | 0 |
7 | 0 |
8 | 1 |
9 | 2 |
10 | 4 |
11 | 8 |
12 | 16 |
13 | 32 |
14 | 63 |
15 | 126 |
16 | 252 |
17 | 503 |
18 | 1004 |
19 | 2004 |
20 | 4000 |
21 | 7984 |
22 | 15936 |
23 | 31809 |
24 | 63492 |
25 | 126732 |
26 | 252961 |
27 | 504918 |
28 | 1007832 |
29 | 2011664 |
30 | 4015344 |
31 | 8014752 |
32 | 15997695 |
33 | 31931898 |
34 | 63737064 |
35 | 127221167 |
36 | 253937416 |
37 | 506867000 |
38 | 1011722336 |
39 | 2019429328 |
[0,0,0,0,0,1,0,0,1,2,4,8,16,32,63,126,252,503, 1004,2004,4000,7984,15936,31809,63492,126732, 252961,504918,1007832,2011664,4015344,8014752, 15997695,31931898,63737064,127221167,253937416, 506867000,1011722336,2019429328] |