Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 4 |
3 | 6 |
4 | 56 |
5 | 250 |
6 | 1812 |
7 | 12614 |
8 | 101040 |
9 | 864882 |
10 | 7988780 |
11 | 78726142 |
12 | 823897032 |
13 | 9111774698 |
14 | 106068603396 |
15 | 1295153135670 |
16 | 16538681229152 |
17 | 220281968528098 |
18 | 3053087839536732 |
19 | 43941561067048430 |
20 | 655501502129291640 |
21 | 10118103843683127642 |
[1,0,4,6,56,250,1812,12614,101040,864882,7988780, 78726142,823897032,9111774698,106068603396, 1295153135670,16538681229152,220281968528098, 3053087839536732,43941561067048430, 655501502129291640,10118103843683127642] |