n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 11 |
3 | 45 |
4 | 187 |
5 | 813 |
6 | 3595 |
7 | 16129 |
8 | 73455 |
9 | 337045 |
10 | 1560531 |
11 | 7271537 |
12 | 34061735 |
13 | 160372701 |
14 | 757970843 |
15 | 3595687081 |
16 | 17111115759 |
17 | 81651588021 |
18 | 390627636835 |
19 | 1872913492353 |
20 | 8998295638711 |
21 | 43311574341005 |
22 | 208819980112683 |
23 | 1008354117957401 |
24 | 4876013903788671 |
25 | 23609343188579301 |
26 | 114453003449887219 |
[1,3,11,45,187,813,3595,16129,73455,337045, 1560531,7271537,34061735,160372701,757970843, 3595687081,17111115759,81651588021,390627636835, 1872913492353,8998295638711,43311574341005, 208819980112683,1008354117957401,4876013903788671, 23609343188579301,114453003449887219] |