n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 5 |
3 | 16 |
4 | 56 |
5 | 204 |
6 | 780 |
7 | 3099 |
8 | 12594 |
9 | 52123 |
10 | 219696 |
11 | 939511 |
12 | 4061334 |
13 | 17733255 |
14 | 78151761 |
15 | 347048149 |
16 | 1551225434 |
17 | 6976462330 |
18 | 31550130733 |
19 | 143365879422 |
20 | 654323444492 |
21 | 2998603009552 |
22 | 13792688901614 |
23 | 63654344411450 |
24 | 294688265919191 |
25 | 1368229743361834 |
26 | 6369561861745394 |
27 | 29725712375089444 |
[1,2,5,16,56,204,780,3099,12594,52123,219696, 939511,4061334,17733255,78151761,347048149, 1551225434,6976462330,31550130733,143365879422, 654323444492,2998603009552,13792688901614, 63654344411450,294688265919191,1368229743361834, 6369561861745394,29725712375089444] |