Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
3 | 1 |
4 | 6 |
5 | 55 |
6 | 540 |
7 | 6412 |
8 | 90734 |
9 | 1515097 |
10 | 29368155 |
11 | 649910349 |
12 | 16178495157 |
13 | 447436384356 |
14 | 13607804913248 |
15 | 451277483034618 |
16 | 16204761730619392 |
17 | 626327433705523558 |
18 | 25924177756443661632 |
19 | 1144012780063556028591 |
20 | 53615833082093775740400 |
21 | 2659498185704802765924159 |
[1,6,55,540,6412,90734,1515097,29368155,649910349, 16178495157,447436384356,13607804913248, 451277483034618,16204761730619392, 626327433705523558,25924177756443661632, 1144012780063556028591,53615833082093775740400, 2659498185704802765924159] |