n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 11 |
4 | 51 |
5 | 147 |
6 | 691 |
7 | 2229 |
8 | 10569 |
9 | 36587 |
10 | 174151 |
11 | 631267 |
12 | 3015819 |
13 | 11297343 |
14 | 54109527 |
15 | 207809319 |
16 | 997352927 |
17 | 3905712813 |
18 | 18775928973 |
19 | 74694466147 |
20 | 359566404155 |
21 | 1449137185583 |
22 | 6983876576051 |
23 | 28456062978505 |
24 | 137272752795641 |
25 | 564570822135359 |
26 | 2725789916924483 |
27 | 11301486545827607 |
[1,1,5,11,51,147,691,2229,10569,36587,174151, 631267,3015819,11297343,54109527,207809319, 997352927,3905712813,18775928973,74694466147, 359566404155,1449137185583,6983876576051, 28456062978505,137272752795641,564570822135359, 2725789916924483,11301486545827607] |