Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 4 |
4 | 26 |
5 | 202 |
6 | 1786 |
7 | 17296 |
8 | 179826 |
9 | 1980484 |
10 | 22895120 |
11 | 276005616 |
12 | 3452880648 |
13 | 44660161656 |
14 | 595491975516 |
15 | 8166748417744 |
16 | 114983040461254 |
17 | 1659471907641924 |
18 | 24519436191927936 |
19 | 370506958317854776 |
[1,1,4,26,202,1786,17296,179826,1980484,22895120, 276005616,3452880648,44660161656,595491975516, 8166748417744,114983040461254,1659471907641924, 24519436191927936,370506958317854776] |