n | a(n) |
---|---|
1 | 2 |
2 | 4 |
3 | 9 |
4 | 18 |
5 | 37 |
6 | 74 |
7 | 149 |
8 | 298 |
9 | 597 |
10 | 1194 |
11 | 2389 |
12 | 4778 |
13 | 9557 |
14 | 19114 |
15 | 38229 |
16 | 76458 |
17 | 152917 |
18 | 305834 |
19 | 611669 |
20 | 1223338 |
21 | 2446677 |
22 | 4893354 |
23 | 9786709 |
24 | 19573418 |
25 | 39146837 |
26 | 78293674 |
27 | 156587349 |
28 | 313174698 |
29 | 626349397 |
30 | 1252698794 |
31 | 2505397589 |
[2,4,9,18,37,74,149,298,597,1194,2389,4778,9557, 19114,38229,76458,152917,305834,611669,1223338, 2446677,4893354,9786709,19573418,39146837, 78293674,156587349,313174698,626349397,1252698794, 2505397589] |