Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 28 |
3 | 272 |
4 | 3360 |
5 | 50256 |
6 | 881616 |
7 | 17734944 |
8 | 402278496 |
9 | 10155145344 |
10 | 282329361024 |
11 | 8570500876032 |
12 | 282047266728192 |
13 | 10001430040080384 |
14 | 380152962804068352 |
15 | 15418451851593596928 |
16 | 664633482628021493760 |
17 | 30342827915683778027520 |
[1,4,28,272,3360,50256,881616,17734944,402278496, 10155145344,282329361024,8570500876032, 282047266728192,10001430040080384, 380152962804068352,15418451851593596928, 664633482628021493760,30342827915683778027520] |