Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 1 |
2 | 4 |
3 | 24 |
4 | 72 |
5 | 256 |
6 | 1312 |
7 | 5206 |
8 | 21208 |
9 | 97668 |
10 | 422052 |
11 | 1819620 |
12 | 8158144 |
13 | 36110122 |
14 | 159422584 |
15 | 712790438 |
16 | 3182921756 |
17 | 14206099012 |
18 | 63688577860 |
19 | 285783359204 |
20 | 1282956672032 |
21 | 5770687400200 |
22 | 25983122754016 |
23 | 117074268243396 |
[1,4,24,72,256,1312,5206,21208,97668,422052, 1819620,8158144,36110122,159422584,712790438, 3182921756,14206099012,63688577860,285783359204, 1282956672032,5770687400200,25983122754016, 117074268243396] |