n | a(n) |
---|---|
2 | 1 |
3 | 3 |
4 | 8 |
5 | 21 |
6 | 52 |
7 | 126 |
8 | 296 |
9 | 685 |
10 | 1556 |
11 | 3498 |
12 | 7768 |
13 | 17122 |
14 | 37416 |
15 | 81308 |
16 | 175568 |
17 | 377469 |
18 | 807604 |
19 | 1721970 |
20 | 3657464 |
21 | 7746838 |
22 | 16357496 |
23 | 34459428 |
24 | 72407728 |
25 | 151851986 |
26 | 317777032 |
27 | 663908196 |
28 | 1384524656 |
29 | 2883208740 |
30 | 5994736336 |
31 | 12448784824 |
32 | 25816193952 |
33 | 53479331357 |
34 | 110652549620 |
[1,3,8,21,52,126,296,685,1556,3498,7768,17122, 37416,81308,175568,377469,807604,1721970,3657464, 7746838,16357496,34459428,72407728,151851986, 317777032,663908196,1384524656,2883208740, 5994736336,12448784824,25816193952,53479331357, 110652549620] |