Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 3 |
2 | 4 |
3 | 6 |
4 | 18 |
5 | 15 |
6 | 104 |
7 | 227 |
8 | 510 |
9 | 2020 |
10 | 4986 |
11 | 13983 |
12 | 45252 |
13 | 121009 |
14 | 355706 |
15 | 1066100 |
16 | 2988274 |
17 | 8793219 |
18 | 25704770 |
19 | 73650585 |
20 | 215512322 |
21 | 625817974 |
22 | 1809132934 |
23 | 5271836919 |
24 | 15292220940 |
25 | 44347166183 |
26 | 128947693186 |
27 | 374125678734 |
[3,4,6,18,15,104,227,510,2020,4986,13983,45252, 121009,355706,1066100,2988274,8793219,25704770, 73650585,215512322,625817974,1809132934, 5271836919,15292220940,44347166183,128947693186, 374125678734] |