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 | 13 |
4 | 42 |
5 | 130 |
6 | 397 |
7 | 1197 |
8 | 3566 |
9 | 10517 |
10 | 30760 |
11 | 89293 |
12 | 257397 |
13 | 737220 |
14 | 2099215 |
15 | 5945594 |
16 | 16756258 |
17 | 47004829 |
18 | 131286914 |
19 | 365203797 |
20 | 1012031772 |
21 | 2794446326 |
22 | 7690009600 |
23 | 21094325177 |
24 | 57687762889 |
25 | 157306741287 |
26 | 427777384499 |
27 | 1160250104637 |
28 | 3139067594584 |
29 | 8472525405830 |
30 | 22815639395641 |
[1,1,4,13,42,130,397,1197,3566,10517,30760,89293, 257397,737220,2099215,5945594,16756258,47004829, 131286914,365203797,1012031772,2794446326, 7690009600,21094325177,57687762889,157306741287, 427777384499,1160250104637,3139067594584, 8472525405830,22815639395641] |