n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 3 |
4 | 11 |
5 | 34 |
6 | 138 |
7 | 610 |
8 | 2976 |
9 | 15612 |
10 | 87905 |
11 | 526274 |
12 | 3334988 |
13 | 22270254 |
14 | 156173299 |
15 | 1146640394 |
16 | 8791427525 |
17 | 70227355786 |
18 | 583283756678 |
19 | 5027823752930 |
20 | 44903579714037 |
21 | 414877600876638 |
22 | 3959945233249877 |
23 | 38996757506464858 |
24 | 395749369601741015 |
25 | 4134132167178705732 |
[1,2,3,11,34,138,610,2976,15612,87905,526274, 3334988,22270254,156173299,1146640394,8791427525, 70227355786,583283756678,5027823752930, 44903579714037,414877600876638,3959945233249877, 38996757506464858,395749369601741015, 4134132167178705732] |