n | a(n) |
---|---|
1 | 2 |
2 | 5 |
3 | 9 |
4 | 21 |
5 | 57 |
6 | 125 |
7 | 289 |
8 | 741 |
9 | 1737 |
10 | 4045 |
11 | 9969 |
12 | 23861 |
13 | 56217 |
14 | 135965 |
15 | 326849 |
16 | 776581 |
17 | 1864297 |
18 | 4479085 |
19 | 10691729 |
20 | 25606101 |
21 | 61438777 |
22 | 146972605 |
23 | 351821409 |
24 | 843331621 |
25 | 2019112457 |
26 | 4833683725 |
27 | 11580336689 |
28 | 27733236341 |
29 | 66402706137 |
[2,5,9,21,57,125,289,741,1737,4045,9969,23861, 56217,135965,326849,776581,1864297,4479085, 10691729,25606101,61438777,146972605,351821409, 843331621,2019112457,4833683725,11580336689, 27733236341,66402706137] |