The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
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!)

A006790 as a simple table

n a(n)
0 1
1 2
2 5
3 15
4 53
5 211
6 938
7 4582
8 24349
9 139671
10 858745
11 5628789
12 39145021
13 287667582
14 2226033629
15 18082308403
16 153770703339
17 1365631349757
18 12638233544989
19 121640399661294
20 1215438543434225
21 12587691428792115

[1,2,5,15,53,211,938,4582,24349,139671,858745,
 5628789,39145021,287667582,2226033629,18082308403,
 153770703339,1365631349757,12638233544989,
 121640399661294,1215438543434225,
 12587691428792115]

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 May 23 16:36 EDT 2024. Contains 372765 sequences. (Running on oeis4.)