n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 6 |
4 | 12 |
5 | 25 |
6 | 57 |
7 | 124 |
8 | 268 |
9 | 588 |
10 | 1285 |
11 | 2801 |
12 | 6118 |
13 | 13362 |
14 | 29168 |
15 | 63685 |
16 | 139057 |
17 | 303608 |
18 | 662888 |
19 | 1447352 |
20 | 3160121 |
21 | 6899745 |
22 | 15064810 |
23 | 32892270 |
24 | 71816436 |
25 | 156802881 |
26 | 342360937 |
27 | 747505396 |
28 | 1632091412 |
29 | 3563482500 |
30 | 7780451037 |
31 | 16987713169 |
32 | 37090703118 |
33 | 80983251898 |
[1,1,2,6,12,25,57,124,268,588,1285,2801,6118, 13362,29168,63685,139057,303608,662888,1447352, 3160121,6899745,15064810,32892270,71816436, 156802881,342360937,747505396,1632091412, 3563482500,7780451037,16987713169,37090703118, 80983251898] |