n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 9 |
4 | 20 |
5 | 39 |
6 | 75 |
7 | 148 |
8 | 297 |
9 | 597 |
10 | 1196 |
11 | 2391 |
12 | 4779 |
13 | 9556 |
14 | 19113 |
15 | 38229 |
16 | 76460 |
17 | 152919 |
18 | 305835 |
19 | 611668 |
20 | 1223337 |
21 | 2446677 |
22 | 4893356 |
23 | 9786711 |
24 | 19573419 |
25 | 39146836 |
26 | 78293673 |
27 | 156587349 |
28 | 313174700 |
29 | 626349399 |
30 | 1252698795 |
31 | 2505397588 |
32 | 5010795177 |
33 | 10021590357 |
[1,3,9,20,39,75,148,297,597,1196,2391,4779,9556, 19113,38229,76460,152919,305835,611668,1223337, 2446677,4893356,9786711,19573419,39146836, 78293673,156587349,313174700,626349399,1252698795, 2505397588,5010795177,10021590357] |