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 | 4 |
4 | 16 |
5 | 77 |
6 | 449 |
7 | 3060 |
8 | 23920 |
9 | 210929 |
10 | 2070941 |
11 | 22403814 |
12 | 264772349 |
13 | 3393900115 |
14 | 46897528867 |
15 | 694936109571 |
16 | 10992625733214 |
17 | 184875978240420 |
18 | 3294153794102035 |
19 | 61989985034465559 |
20 | 1228528794319408361 |
[1,1,1,4,16,77,449,3060,23920,210929,2070941, 22403814,264772349,3393900115,46897528867, 694936109571,10992625733214,184875978240420, 3294153794102035,61989985034465559, 1228528794319408361] |