n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 1 |
3 | 3 |
4 | 9 |
5 | 21 |
6 | 49 |
7 | 105 |
8 | 225 |
9 | 465 |
10 | 961 |
11 | 1953 |
12 | 3969 |
13 | 8001 |
14 | 16129 |
15 | 32385 |
16 | 65025 |
17 | 130305 |
18 | 261121 |
19 | 522753 |
20 | 1046529 |
21 | 2094081 |
22 | 4190209 |
23 | 8382465 |
24 | 16769025 |
25 | 33542145 |
26 | 67092481 |
27 | 134193153 |
28 | 268402689 |
29 | 536821761 |
30 | 1073676289 |
31 | 2147385345 |
[0,0,1,3,9,21,49,105,225,465,961,1953,3969,8001, 16129,32385,65025,130305,261121,522753,1046529, 2094081,4190209,8382465,16769025,33542145, 67092481,134193153,268402689,536821761,1073676289, 2147385345] |