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!)

A271274 as a simple table

n a(n)
0 1
1 4
2 40
3 200
4 856
5 3568
6 14716
7 59624
8 239688
9 962852
10 3852204
11 15419816
12 61667416
13 246662736
14 986584576
15 3946302560 

[1,4,40,200,856,3568,14716,59624,239688,962852,
 3852204,15419816,61667416,246662736,986584576,
 3946302560]

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 August 17 23:40 EDT 2024. Contains 375255 sequences. (Running on oeis4.)