Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 209 |
3 | 840 |
4 | 43889 |
5 | 176396 |
6 | 9216481 |
7 | 37042320 |
8 | 1935417121 |
9 | 7778710804 |
10 | 406428378929 |
11 | 1633492226520 |
12 | 85348024157969 |
13 | 343025588858396 |
14 | 17922678644794561 |
15 | 72033740168036640 |
16 | 3763677167382699841 |
17 | 15126742409698836004 |
18 | 790354282471722172049 |
[1,4,209,840,43889,176396,9216481,37042320, 1935417121,7778710804,406428378929,1633492226520, 85348024157969,343025588858396,17922678644794561, 72033740168036640,3763677167382699841, 15126742409698836004,790354282471722172049] |