Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
2 | 1 |
3 | 7 |
4 | 28 |
5 | 123 |
6 | 515 |
7 | 2192 |
8 | 9269 |
9 | 39291 |
10 | 166396 |
11 | 704935 |
12 | 2986039 |
13 | 12649248 |
14 | 53582777 |
15 | 226980767 |
16 | 961505180 |
17 | 4073002563 |
18 | 17253513691 |
19 | 73087060144 |
20 | 309601749709 |
21 | 1311494066355 |
22 | 5555578003196 |
23 | 23533806098447 |
24 | 99690802365743 |
25 | 422297015611968 |
26 | 1788878864731825 |
[1,7,28,123,515,2192,9269,39291,166396,704935, 2986039,12649248,53582777,226980767,961505180, 4073002563,17253513691,73087060144,309601749709, 1311494066355,5555578003196,23533806098447, 99690802365743,422297015611968,1788878864731825] |