n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 7 |
3 | 19 |
4 | 53 |
5 | 149 |
6 | 422 |
7 | 1202 |
8 | 3440 |
9 | 9884 |
10 | 28495 |
11 | 82387 |
12 | 238801 |
13 | 693689 |
14 | 2018981 |
15 | 5886329 |
16 | 17187891 |
17 | 50257299 |
18 | 147135189 |
19 | 431245977 |
20 | 1265264799 |
21 | 3715761759 |
22 | 10921722348 |
23 | 32127865392 |
24 | 94578844458 |
25 | 278614855862 |
26 | 821281118993 |
27 | 2422356077357 |
28 | 7148679142639 |
[1,3,7,19,53,149,422,1202,3440,9884,28495,82387, 238801,693689,2018981,5886329,17187891,50257299, 147135189,431245977,1265264799,3715761759, 10921722348,32127865392,94578844458,278614855862, 821281118993,2422356077357,7148679142639] |