Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 5 |
2 | 20 |
3 | 76 |
4 | 300 |
5 | 1212 |
6 | 4900 |
7 | 19740 |
8 | 79284 |
9 | 317836 |
10 | 1272804 |
11 | 5094204 |
12 | 20382868 |
13 | 81543660 |
14 | 326199108 |
15 | 1304845468 |
[1,5,20,76,300,1212,4900,19740,79284,317836, 1272804,5094204,20382868,81543660,326199108, 1304845468] |