n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 13 |
4 | 47 |
5 | 185 |
6 | 723 |
7 | 2821 |
8 | 11127 |
9 | 43825 |
10 | 173147 |
11 | 685181 |
12 | 2713919 |
13 | 10762793 |
14 | 42715619 |
15 | 169654133 |
16 | 674238983 |
17 | 2680944545 |
18 | 10665068907 |
19 | 42443750893 |
20 | 168973210575 |
21 | 672913173913 |
22 | 2680539263219 |
23 | 10680581419493 |
24 | 42566341729431 |
25 | 169678604019217 |
26 | 676501889994363 |
[1,3,13,47,185,723,2821,11127,43825,173147,685181, 2713919,10762793,42715619,169654133,674238983, 2680944545,10665068907,42443750893,168973210575, 672913173913,2680539263219,10680581419493, 42566341729431,169678604019217,676501889994363] |