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

 

Logo

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 59th year, we have over 358,000 sequences, and we’ve crossed 10,300 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)

A251919 as a simple table

n a(n)
1 3260
2 4938
3 10820
4 25882
5 80438
6 253148
7 856022
8 3063064
9 10885914
10 39035588
11 141641316
12 513510222
13 1860892000
14 6752701006
15 24520021374
16 89037718964
17 323273690688
18 1173779249448
19 4262540743302
20 15479263400324
21 56209300530872

[3260,4938,10820,25882,80438,253148,856022,
 3063064,10885914,39035588,141641316,513510222,
 1860892000,6752701006,24520021374,89037718964,
 323273690688,1173779249448,4262540743302,
 15479263400324,56209300530872]

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 November 28 09:59 EST 2022. Contains 358411 sequences. (Running on oeis4.)