n | a(n) |
---|---|
1 | 2 |
2 | 2 |
3 | 2 |
4 | 2 |
5 | 4 |
6 | 6 |
7 | 10 |
8 | 18 |
9 | 30 |
10 | 54 |
11 | 98 |
12 | 178 |
13 | 328 |
14 | 608 |
15 | 1130 |
16 | 2114 |
17 | 3974 |
18 | 7490 |
19 | 14170 |
20 | 26890 |
21 | 51150 |
22 | 97542 |
23 | 186420 |
24 | 356962 |
25 | 684784 |
26 | 1315870 |
27 | 2532410 |
28 | 4880646 |
29 | 9418806 |
30 | 18199014 |
31 | 35204650 |
32 | 68174116 |
33 | 132152842 |
34 | 256415958 |
35 | 497967282 |
36 | 967879954 |
37 | 1882725390 |
38 | 3665038872 |
[2,2,2,2,4,6,10,18,30,54,98,178,328,608,1130,2114, 3974,7490,14170,26890,51150,97542,186420,356962, 684784,1315870,2532410,4880646,9418806,18199014, 35204650,68174116,132152842,256415958,497967282, 967879954,1882725390,3665038872] |