n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 7 |
3 | 19 |
4 | 53 |
5 | 149 |
6 | 419 |
7 | 1191 |
8 | 3403 |
9 | 9755 |
10 | 28077 |
11 | 81097 |
12 | 234861 |
13 | 681697 |
14 | 1982723 |
15 | 5777375 |
16 | 16861521 |
17 | 49281525 |
18 | 144222987 |
19 | 422566835 |
20 | 1239423303 |
21 | 3638872529 |
22 | 10693065215 |
23 | 31448140529 |
24 | 92558787745 |
25 | 272612601065 |
26 | 803448576111 |
[1,3,7,19,53,149,419,1191,3403,9755,28077,81097, 234861,681697,1982723,5777375,16861521,49281525, 144222987,422566835,1239423303,3638872529, 10693065215,31448140529,92558787745,272612601065, 803448576111] |