Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 12 |
4 | 44 |
5 | 164 |
6 | 643 |
7 | 2574 |
8 | 10554 |
9 | 43956 |
10 | 185642 |
11 | 792846 |
12 | 3418616 |
13 | 14860606 |
14 | 65054182 |
15 | 286536007 |
16 | 1268905654 |
17 | 5646284864 |
18 | 25232338903 |
19 | 113194654758 |
20 | 509574041184 |
21 | 2301247205497 |
22 | 10422542804458 |
23 | 47329681905633 |
24 | 215452103352557 |
25 | 982977683341317 |
26 | 4494071645187763 |
27 | 20586153075994492 |
[1,1,4,12,44,164,643,2574,10554,43956,185642, 792846,3418616,14860606,65054182,286536007, 1268905654,5646284864,25232338903,113194654758, 509574041184,2301247205497,10422542804458, 47329681905633,215452103352557,982977683341317, 4494071645187763,20586153075994492] |