Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 3 |
2 | 7 |
3 | 18 |
4 | 47 |
5 | 246 |
6 | 767 |
7 | 4338 |
8 | 13687 |
9 | 77766 |
10 | 1227617 |
11 | 4237966 |
12 | 58256487 |
13 | 428504938 |
14 | 1397827967 |
15 | 8041666846 |
16 | 127260518217 |
17 | 2266556004016 |
18 | 7867304297817 |
19 | 108368654581246 |
20 | 797215157169645 |
21 | 2600638713977566 |
22 | 34961761386236715 |
23 | 256768195924215394 |
[3,7,18,47,246,767,4338,13687,77766,1227617, 4237966,58256487,428504938,1397827967,8041666846, 127260518217,2266556004016,7867304297817, 108368654581246,797215157169645,2600638713977566, 34961761386236715,256768195924215394] |