Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 5 |
2 | 15 |
3 | 50 |
4 | 190 |
5 | 766 |
6 | 3231 |
7 | 14066 |
8 | 62681 |
9 | 284591 |
10 | 1311622 |
11 | 6120183 |
12 | 28855529 |
13 | 137257541 |
14 | 657894518 |
15 | 3174411715 |
16 | 15406640415 |
17 | 75162477018 |
18 | 368383443235 |
19 | 1813007892858 |
20 | 8956214966017 |
21 | 44393932344984 |
22 | 220732441125743 |
23 | 1100621484436502 |
[1,5,15,50,190,766,3231,14066,62681,284591, 1311622,6120183,28855529,137257541,657894518, 3174411715,15406640415,75162477018,368383443235, 1813007892858,8956214966017,44393932344984, 220732441125743,1100621484436502] |