Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 0 |
2 | 4 |
3 | 18 |
4 | 220 |
5 | 883 |
6 | 17672 |
7 | 23566 |
8 | 659868 |
9 | 5278979 |
10 | 95021762 |
11 | 380087174 |
12 | 16723836916 |
13 | 66895348819 |
14 | 3478558152448 |
15 | 13914232622662 |
16 | 11131386100532 |
17 | 178102177617521 |
18 | 3027737019533893 |
19 | 4036982692723202 |
20 | 306810684647167556 |
[0,4,18,220,883,17672,23566,659868,5278979, 95021762,380087174,16723836916,66895348819, 3478558152448,13914232622662,11131386100532, 178102177617521,3027737019533893,4036982692723202, 306810684647167556] |