n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 4 |
4 | 9 |
5 | 22 |
6 | 53 |
7 | 131 |
8 | 337 |
9 | 869 |
10 | 2213 |
11 | 5691 |
12 | 14517 |
13 | 37017 |
14 | 93731 |
15 | 237465 |
16 | 601093 |
17 | 1519815 |
18 | 3842575 |
19 | 9720769 |
20 | 24599577 |
21 | 62283535 |
22 | 157807915 |
23 | 400094029 |
24 | 1014905643 |
25 | 2576046289 |
26 | 6541989261 |
27 | 16621908599 |
[1,2,4,9,22,53,131,337,869,2213,5691,14517,37017, 93731,237465,601093,1519815,3842575,9720769, 24599577,62283535,157807915,400094029,1014905643, 2576046289,6541989261,16621908599] |