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 | 19 |
4 | 116 |
5 | 776 |
6 | 5620 |
7 | 42288 |
8 | 328756 |
9 | 2615104 |
10 | 21191904 |
11 | 174303163 |
12 | 1451430692 |
13 | 12211799224 |
14 | 103655949072 |
15 | 886568153744 |
16 | 7633233556276 |
17 | 66105170315084 |
18 | 575445692499952 |
19 | 5032380942945322 |
20 | 44191451788248416 |
21 | 389514699013012242 |
22 | 3444925385336301684 |
[1,1,4,19,116,776,5620,42288,328756,2615104, 21191904,174303163,1451430692,12211799224, 103655949072,886568153744,7633233556276, 66105170315084,575445692499952,5032380942945322, 44191451788248416,389514699013012242, 3444925385336301684] |