n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 11 |
3 | 59 |
4 | 171 |
5 | 1019 |
6 | 3051 |
7 | 15291 |
8 | 43691 |
9 | 262139 |
10 | 786411 |
11 | 3932091 |
12 | 11271851 |
13 | 66845691 |
14 | 200010731 |
15 | 1002159035 |
16 | 2863311531 |
17 | 17179869179 |
18 | 51539607531 |
19 | 257698037691 |
20 | 738734374571 |
21 | 4380866640891 |
22 | 13108240182251 |
23 | 65678639872955 |
24 | 187655711009451 |
[1,3,11,59,171,1019,3051,15291,43691,262139, 786411,3932091,11271851,66845691,200010731, 1002159035,2863311531,17179869179,51539607531, 257698037691,738734374571,4380866640891, 13108240182251,65678639872955,187655711009451] |