n | a(n) |
---|---|
0 | 2 |
1 | 7 |
2 | 53 |
3 | 311 |
4 | 1619 |
5 | 8161 |
6 | 38873 |
7 | 180503 |
8 | 821641 |
9 | 3681131 |
10 | 16290047 |
11 | 71378569 |
12 | 310248241 |
13 | 1339484197 |
14 | 5750079047 |
15 | 24563311309 |
16 | 104484802057 |
17 | 442795487221 |
18 | 1870358526653 |
19 | 7877263558621 |
20 | 33089240375501 |
21 | 138666449011757 |
22 | 579863159340527 |
23 | 2420094683001859 |
24 | 10082409897709157 |
[2,7,53,311,1619,8161,38873,180503,821641,3681131, 16290047,71378569,310248241,1339484197,5750079047, 24563311309,104484802057,442795487221, 1870358526653,7877263558621,33089240375501, 138666449011757,579863159340527,2420094683001859, 10082409897709157] |