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!)

A006657 as a simple table

n a(n)
2 2
3 12
4 84
5 640
6 5236
7 45164
8 406012
9 3772008
10 35994184
11 351173328
12 3490681428
13 35253449296
14 360946635312
15 3739935635756
16 39159200588780
17 413836299216608
18 4409705753032648
19 47337525317450816
20 511563350415103008

[2,12,84,640,5236,45164,406012,3772008,35994184,
 351173328,3490681428,35253449296,360946635312,
 3739935635756,39159200588780,413836299216608,
 4409705753032648,47337525317450816,
 511563350415103008]

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 April 23 16:40 EDT 2024. Contains 371916 sequences. (Running on oeis4.)