n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 17 |
4 | 46 |
5 | 122 |
6 | 321 |
7 | 842 |
8 | 2206 |
9 | 5777 |
10 | 15126 |
11 | 39602 |
12 | 103681 |
13 | 271442 |
14 | 710646 |
15 | 1860497 |
16 | 4870846 |
17 | 12752042 |
18 | 33385281 |
19 | 87403802 |
20 | 228826126 |
21 | 599074577 |
22 | 1568397606 |
23 | 4106118242 |
24 | 10749957121 |
25 | 28143753122 |
26 | 73681302246 |
27 | 192900153617 |
28 | 505019158606 |
29 | 1322157322202 |
[1,2,6,17,46,122,321,842,2206,5777,15126,39602, 103681,271442,710646,1860497,4870846,12752042, 33385281,87403802,228826126,599074577,1568397606, 4106118242,10749957121,28143753122,73681302246, 192900153617,505019158606,1322157322202] |