Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 4 |
2 | 20 |
3 | 65 |
4 | 281 |
5 | 1144 |
6 | 4321 |
7 | 18093 |
8 | 72746 |
9 | 285199 |
10 | 1170837 |
11 | 4701572 |
12 | 18728977 |
13 | 76116025 |
14 | 305826310 |
15 | 1226299079 |
16 | 4959269105 |
17 | 19941716260 |
18 | 80172499973 |
19 | 323467010101 |
20 | 1301467854854 |
21 | 5237685581779 |
22 | 21109227250621 |
23 | 84964283025692 |
[4,20,65,281,1144,4321,18093,72746,285199,1170837, 4701572,18728977,76116025,305826310,1226299079, 4959269105,19941716260,80172499973,323467010101, 1301467854854,5237685581779,21109227250621, 84964283025692] |