n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 4 |
4 | 9 |
5 | 18 |
6 | 44 |
7 | 98 |
8 | 244 |
9 | 605 |
10 | 1595 |
11 | 4273 |
12 | 12048 |
13 | 34790 |
14 | 104480 |
15 | 322954 |
16 | 1031556 |
17 | 3389413 |
18 | 11464454 |
19 | 39820812 |
20 | 141962355 |
21 | 518663683 |
22 | 1940341269 |
23 | 7424565391 |
24 | 29033121685 |
25 | 115921101414 |
26 | 472219204088 |
27 | 1961177127371 |
28 | 8298334192288 |
29 | 35751364047676 |
30 | 156736154469354 |
[1,1,2,4,9,18,44,98,244,605,1595,4273,12048,34790, 104480,322954,1031556,3389413,11464454,39820812, 141962355,518663683,1940341269,7424565391, 29033121685,115921101414,472219204088, 1961177127371,8298334192288,35751364047676, 156736154469354] |