login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)

A284747 as a simple table

n a(n)
1 0
2 1
3 4
4 54
5 1794
6 99990
7 7955460
8 848584800
9 116816051520
10 20167501253760
11 4268024125243200
12 1086711068022148800
13 327759648421871635200
14 115567595710587359539200
15 47104362677165542792243200
16 21978200228619432098036736000
17 11639211300056830532862403584000
18 6943663015969522875618267601920000 

[0,1,4,54,1794,99990,7955460,848584800,
 116816051520,20167501253760,4268024125243200,
 1086711068022148800,327759648421871635200,
 115567595710587359539200,
 47104362677165542792243200,
 21978200228619432098036736000,
 11639211300056830532862403584000,
 6943663015969522875618267601920000]

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified September 11 14:49 EDT 2024. Contains 375836 sequences. (Running on oeis4.)