n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 1 |
4 | 4 |
5 | 6 |
6 | 14 |
7 | 26 |
8 | 54 |
9 | 105 |
10 | 213 |
11 | 423 |
12 | 849 |
13 | 1697 |
14 | 3399 |
15 | 6799 |
16 | 13608 |
17 | 27220 |
18 | 54451 |
19 | 108901 |
20 | 217789 |
21 | 435517 |
22 | 870892 |
23 | 1741467 |
24 | 3482322 |
25 | 6963512 |
26 | 13925078 |
27 | 27846979 |
28 | 55689150 |
29 | 111371677 |
30 | 222735709 |
31 | 445466058 |
32 | 890938357 |
33 | 1781916885 |
34 | 3563957177 |
35 | 7128223846 |
[0,1,1,4,6,14,26,54,105,213,423,849,1697,3399, 6799,13608,27220,54451,108901,217789,435517, 870892,1741467,3482322,6963512,13925078,27846979, 55689150,111371677,222735709,445466058,890938357, 1781916885,3563957177,7128223846] |