login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)

A001930 as a simple table

n a(n)
0 1
1 1
2 3
3 9
4 33
5 139
6 718
7 4535
8 35979
9 363083
10 4717687
11 79501654
12 1744252509
13 49872339897
14 1856792610995
15 89847422244493
16 5637294117525695

[1,1,3,9,33,139,718,4535,35979,363083,4717687,
 79501654,1744252509,49872339897,1856792610995,
 89847422244493,5637294117525695]

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified May 27 11:06 EDT 2018. Contains 304690 sequences. (Running on oeis4.)