n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 4 |
4 | 11 |
5 | 28 |
6 | 79 |
7 | 244 |
8 | 756 |
9 | 2414 |
10 | 8107 |
11 | 27640 |
12 | 95361 |
13 | 338751 |
14 | 1222567 |
15 | 4443525 |
16 | 16439284 |
17 | 61649195 |
18 | 232510867 |
19 | 887040112 |
20 | 3421223717 |
21 | 13262535201 |
22 | 51824394632 |
23 | 204265724147 |
24 | 808816950156 |
25 | 3221620828563 |
26 | 12920663336684 |
27 | 52033194700646 |
28 | 210517584336915 |
29 | 856451947014847 |
30 | 3497061369568127 |
[1,1,2,4,11,28,79,244,756,2414,8107,27640,95361, 338751,1222567,4443525,16439284,61649195, 232510867,887040112,3421223717,13262535201, 51824394632,204265724147,808816950156, 3221620828563,12920663336684,52033194700646, 210517584336915,856451947014847,3497061369568127] |