n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 3 |
4 | 7 |
5 | 15 |
6 | 48 |
7 | 133 |
8 | 456 |
9 | 1439 |
10 | 5060 |
11 | 16797 |
12 | 60693 |
13 | 208013 |
14 | 760326 |
15 | 2677217 |
16 | 9879513 |
17 | 35357671 |
18 | 131763844 |
19 | 477638701 |
20 | 1790943777 |
21 | 6566420517 |
22 | 24748372638 |
23 | 91482563641 |
24 | 346597488614 |
25 | 1289904685149 |
26 | 4905215393598 |
27 | 18370277279665 |
28 | 70085754999907 |
29 | 263747951750361 |
[1,1,2,3,7,15,48,133,456,1439,5060,16797,60693, 208013,760326,2677217,9879513,35357671,131763844, 477638701,1790943777,6566420517,24748372638, 91482563641,346597488614,1289904685149, 4905215393598,18370277279665,70085754999907, 263747951750361] |