n | a(n) |
---|---|
0 | 2 |
1 | 4 |
2 | 8 |
3 | 15 |
4 | 24 |
5 | 41 |
6 | 85 |
7 | 159 |
8 | 314 |
9 | 651 |
10 | 1267 |
11 | 2496 |
12 | 4977 |
13 | 9889 |
14 | 19731 |
15 | 38945 |
16 | 77356 |
17 | 154693 |
18 | 308051 |
19 | 615768 |
20 | 1229080 |
21 | 2456328 |
22 | 4908126 |
23 | 9815038 |
24 | 19620985 |
25 | 39237465 |
26 | 78466413 |
27 | 156910438 |
28 | 313788371 |
29 | 627528817 |
[2,4,8,15,24,41,85,159,314,651,1267,2496,4977, 9889,19731,38945,77356,154693,308051,615768, 1229080,2456328,4908126,9815038,19620985,39237465, 78466413,156910438,313788371,627528817] |