Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 6 |
4 | 26 |
5 | 133 |
6 | 799 |
7 | 5599 |
8 | 44795 |
9 | 403160 |
10 | 4031607 |
11 | 44347682 |
12 | 532172186 |
13 | 6918238422 |
14 | 96855337921 |
15 | 1452830068828 |
16 | 23245281101260 |
17 | 395169778721427 |
18 | 7113056016985690 |
19 | 135148064322728118 |
20 | 2702961286454562374 |
[1,2,6,26,133,799,5599,44795,403160,4031607, 44347682,532172186,6918238422,96855337921, 1452830068828,23245281101260,395169778721427, 7113056016985690,135148064322728118, 2702961286454562374] |