Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 5 |
2 | 25 |
3 | 115 |
4 | 525 |
5 | 2385 |
6 | 10825 |
7 | 49120 |
8 | 222875 |
9 | 1011251 |
10 | 4588335 |
11 | 20818575 |
12 | 94459755 |
13 | 428590575 |
14 | 1944636420 |
15 | 8823364350 |
16 | 40034094615 |
17 | 181645987625 |
18 | 824179118751 |
19 | 3739533301365 |
20 | 16967318139775 |
21 | 76985511735170 |
22 | 349304997307275 |
23 | 1584895370489480 |
[1,5,25,115,525,2385,10825,49120,222875,1011251, 4588335,20818575,94459755,428590575,1944636420, 8823364350,40034094615,181645987625,824179118751, 3739533301365,16967318139775,76985511735170, 349304997307275,1584895370489480] |