n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 2 |
4 | 3 |
5 | 7 |
6 | 16 |
7 | 45 |
8 | 111 |
9 | 318 |
10 | 881 |
11 | 2686 |
12 | 8033 |
13 | 25470 |
14 | 80480 |
15 | 263977 |
16 | 862865 |
17 | 2891344 |
18 | 9706757 |
19 | 33178076 |
20 | 113784968 |
21 | 395303480 |
22 | 1379160685 |
23 | 4859274472 |
24 | 17195407935 |
25 | 61310096228 |
26 | 219520467207 |
27 | 790749207801 |
28 | 2859542098634 |
29 | 10391610220375 |
30 | 37897965144166 |
[1,1,2,3,7,16,45,111,318,881,2686,8033,25470, 80480,263977,862865,2891344,9706757,33178076, 113784968,395303480,1379160685,4859274472, 17195407935,61310096228,219520467207,790749207801, 2859542098634,10391610220375,37897965144166] |