Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 35 |
4 | 165 |
5 | 1177 |
6 | 9407 |
7 | 55657 |
8 | 372429 |
9 | 2766100 |
10 | 17671945 |
11 | 118674685 |
12 | 837152398 |
13 | 5531816082 |
14 | 37328192350 |
15 | 257252634864 |
16 | 1725117502706 |
17 | 11666552132346 |
18 | 79612474584518 |
19 | 537157628862720 |
20 | 3636277021289585 |
21 | 24711657036469040 |
22 | 167150255133278869 |
[1,1,5,35,165,1177,9407,55657,372429,2766100, 17671945,118674685,837152398,5531816082, 37328192350,257252634864,1725117502706, 11666552132346,79612474584518,537157628862720, 3636277021289585,24711657036469040, 167150255133278869] |