n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 7 |
3 | 17 |
4 | 36 |
5 | 76 |
6 | 156 |
7 | 317 |
8 | 639 |
9 | 1284 |
10 | 2574 |
11 | 5155 |
12 | 10317 |
13 | 20642 |
14 | 41292 |
15 | 82594 |
16 | 165197 |
17 | 330405 |
18 | 660820 |
19 | 1321652 |
20 | 2643315 |
21 | 5286643 |
22 | 10573298 |
23 | 21146610 |
24 | 42293233 |
25 | 84586481 |
26 | 169172976 |
[1,3,7,17,36,76,156,317,639,1284,2574,5155,10317, 20642,41292,82594,165197,330405,660820,1321652, 2643315,5286643,10573298,21146610,42293233, 84586481,169172976] |