Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 2 |
4 | 2 |
5 | 5 |
6 | 9 |
7 | 21 |
8 | 38 |
9 | 146 |
10 | 322 |
11 | 902 |
12 | 3106 |
13 | 8406 |
14 | 35865 |
15 | 123321 |
16 | 393691 |
17 | 1442688 |
18 | 7310744 |
19 | 23471306 |
20 | 129918661 |
21 | 500183094 |
22 | 2400722981 |
23 | 9592382321 |
24 | 47764284769 |
25 | 280267554944 |
26 | 1247781159201 |
27 | 7620923955225 |
28 | 36278364107926 |
29 | 189688942325418 |
30 | 1124492015730891 |
[1,1,1,2,2,5,9,21,38,146,322,902,3106,8406,35865, 123321,393691,1442688,7310744,23471306,129918661, 500183094,2400722981,9592382321,47764284769, 280267554944,1247781159201,7620923955225, 36278364107926,189688942325418,1124492015730891] |