n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 1 |
4 | 2 |
5 | 7 |
6 | 14 |
7 | 38 |
8 | 76 |
9 | 187 |
10 | 374 |
11 | 874 |
12 | 1748 |
13 | 3958 |
14 | 7916 |
15 | 17548 |
16 | 35096 |
17 | 76627 |
18 | 153254 |
19 | 330818 |
20 | 661636 |
21 | 1415650 |
22 | 2831300 |
23 | 6015316 |
24 | 12030632 |
25 | 25413342 |
26 | 50826684 |
27 | 106853668 |
28 | 213707336 |
29 | 447472972 |
30 | 894945944 |
31 | 1867450648 |
32 | 3734901296 |
33 | 7770342787 |
34 | 15540685574 |
[0,0,1,2,7,14,38,76,187,374,874,1748,3958,7916, 17548,35096,76627,153254,330818,661636,1415650, 2831300,6015316,12030632,25413342,50826684, 106853668,213707336,447472972,894945944, 1867450648,3734901296,7770342787,15540685574] |