n | a(n) |
---|---|
1 | 2 |
2 | 3 |
3 | 9 |
4 | 17 |
5 | 25 |
6 | 65 |
7 | 185 |
8 | 385 |
9 | 649 |
10 | 1489 |
11 | 3929 |
12 | 8609 |
13 | 15913 |
14 | 34545 |
15 | 85497 |
16 | 191809 |
17 | 377545 |
18 | 802961 |
19 | 1894553 |
20 | 4279521 |
21 | 8785769 |
22 | 18612785 |
23 | 42501945 |
24 | 95817857 |
25 | 202153993 |
26 | 429672401 |
27 | 960801241 |
28 | 2153871393 |
29 | 4621792425 |
30 | 9879318897 |
[2,3,9,17,25,65,185,385,649,1489,3929,8609,15913, 34545,85497,191809,377545,802961,1894553,4279521, 8785769,18612785,42501945,95817857,202153993, 429672401,960801241,2153871393,4621792425, 9879318897] |