n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 4 |
4 | 11 |
5 | 28 |
6 | 79 |
7 | 232 |
8 | 736 |
9 | 2295 |
10 | 7511 |
11 | 25302 |
12 | 86950 |
13 | 300370 |
14 | 1065759 |
15 | 3839576 |
16 | 13953744 |
17 | 51197935 |
18 | 190807055 |
19 | 717234202 |
20 | 2712764266 |
21 | 10353167908 |
22 | 39891162812 |
23 | 154541802382 |
24 | 602000096362 |
25 | 2362123596696 |
26 | 9324852880747 |
27 | 36963162522470 |
28 | 147246486670901 |
29 | 589797809248183 |
30 | 2372248128513882 |
[1,1,2,4,11,28,79,232,736,2295,7511,25302,86950, 300370,1065759,3839576,13953744,51197935, 190807055,717234202,2712764266,10353167908, 39891162812,154541802382,602000096362, 2362123596696,9324852880747,36963162522470, 147246486670901,589797809248183,2372248128513882] |