n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 7 |
4 | 18 |
5 | 42 |
6 | 110 |
7 | 250 |
8 | 627 |
9 | 1439 |
10 | 3523 |
11 | 8063 |
12 | 19374 |
13 | 44274 |
14 | 104816 |
15 | 238976 |
16 | 559171 |
17 | 1271295 |
18 | 2946901 |
19 | 6679741 |
20 | 15363719 |
21 | 34719631 |
22 | 79335385 |
23 | 178749829 |
24 | 406164359 |
25 | 912475815 |
26 | 2063298409 |
27 | 4622461673 |
28 | 10407679805 |
29 | 23254807241 |
30 | 52160338735 |
31 | 116252939071 |
[1,1,3,7,18,42,110,250,627,1439,3523,8063,19374, 44274,104816,238976,559171,1271295,2946901, 6679741,15363719,34719631,79335385,178749829, 406164359,912475815,2063298409,4622461673, 10407679805,23254807241,52160338735,116252939071] |