n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 2 |
5 | 2 |
6 | 4 |
7 | 8 |
8 | 18 |
9 | 34 |
10 | 68 |
11 | 136 |
12 | 274 |
13 | 546 |
14 | 1092 |
15 | 2184 |
16 | 4370 |
17 | 8738 |
18 | 17476 |
19 | 34952 |
20 | 69906 |
21 | 139810 |
22 | 279620 |
23 | 559240 |
24 | 1118482 |
25 | 2236962 |
26 | 4473924 |
27 | 8947848 |
28 | 17895698 |
29 | 35791394 |
30 | 71582788 |
31 | 143165576 |
32 | 286331154 |
33 | 572662306 |
34 | 1145324612 |
35 | 2290649224 |
[1,0,0,0,2,2,4,8,18,34,68,136,274,546,1092,2184, 4370,8738,17476,34952,69906,139810,279620,559240, 1118482,2236962,4473924,8947848,17895698,35791394, 71582788,143165576,286331154,572662306,1145324612, 2290649224] |