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!)

A128933 as a simple table

n a(n)
1 2
2 4
3 10
4 28
5 70
6 430
7 1060
8 56500
9 166840
10 5020060
11 7681810
12 274343590
13 8316187180

[2,4,10,28,70,430,1060,56500,166840,5020060,
 7681810,274343590,8316187180]

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 22 20:08 EDT 2022. Contains 353957 sequences. (Running on oeis4.)