n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 2 |
5 | 4 |
6 | 8 |
7 | 15 |
8 | 37 |
9 | 73 |
10 | 182 |
11 | 364 |
12 | 952 |
13 | 1944 |
14 | 5169 |
15 | 10659 |
16 | 28842 |
17 | 60115 |
18 | 164450 |
19 | 345345 |
20 | 953814 |
21 | 2016144 |
22 | 5609760 |
23 | 11920740 |
24 | 33378072 |
25 | 71250060 |
26 | 200553733 |
27 | 429757960 |
28 | 1215177680 |
29 | 2612635888 |
30 | 7416503776 |
[1,1,1,2,4,8,15,37,73,182,364,952,1944,5169,10659, 28842,60115,164450,345345,953814,2016144,5609760, 11920740,33378072,71250060,200553733,429757960, 1215177680,2612635888,7416503776] |