Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 5 |
4 | 18 |
5 | 69 |
6 | 245 |
7 | 923 |
8 | 3412 |
9 | 12864 |
10 | 48549 |
11 | 184755 |
12 | 705162 |
13 | 2704155 |
14 | 10399675 |
15 | 40116525 |
16 | 155114088 |
17 | 601080389 |
18 | 2333593104 |
19 | 9075135299 |
20 | 35345215162 |
21 | 137846527891 |
22 | 538257689683 |
23 | 2104098963719 |
24 | 8233430018756 |
25 | 32247603683030 |
[1,1,5,18,69,245,923,3412,12864,48549,184755, 705162,2704155,10399675,40116525,155114088, 601080389,2333593104,9075135299,35345215162, 137846527891,538257689683,2104098963719, 8233430018756,32247603683030] |