n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 7 |
3 | 16 |
4 | 41 |
5 | 101 |
6 | 247 |
7 | 613 |
8 | 1529 |
9 | 3821 |
10 | 9539 |
11 | 23843 |
12 | 59611 |
13 | 149015 |
14 | 372539 |
15 | 931327 |
16 | 2328307 |
17 | 5820767 |
18 | 14551919 |
19 | 36379789 |
20 | 90949471 |
21 | 227373677 |
22 | 568434193 |
23 | 1421085473 |
24 | 3552713687 |
25 | 8881784201 |
26 | 22204460497 |
27 | 55511151233 |
28 | 138777878081 |
29 | 346944695197 |
30 | 867361737989 |
[1,3,7,16,41,101,247,613,1529,3821,9539,23843, 59611,149015,372539,931327,2328307,5820767, 14551919,36379789,90949471,227373677,568434193, 1421085473,3552713687,8881784201,22204460497, 55511151233,138777878081,346944695197, 867361737989] |