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!)

A240317 as a simple table

n a(n)
1 4
2 18
3 172
4 866
5 7326
6 35042
7 291982
8 1387224
9 11520638
10 54650290
11 453546794
12 2150825840
13 17847352698
14 84630769202
15 702236000852
16 3329901981396
17 27630151135038
18 131017792653932
19 1087129854047788
20 5154993778435048

[4,18,172,866,7326,35042,291982,1387224,11520638,
 54650290,453546794,2150825840,17847352698,
 84630769202,702236000852,3329901981396,
 27630151135038,131017792653932,1087129854047788,
 5154993778435048]

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 17 23:23 EDT 2024. Contains 371767 sequences. (Running on oeis4.)