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

 

Logo


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

A097809 as a simple table

n a(n)
0 1
1 4
2 12
3 30
4 68
5 146
6 304
7 622
8 1260
9 2538
10 5096
11 10214
12 20452
13 40930
14 81888
15 163806
16 327644
17 655322
18 1310680
19 2621398
20 5242836
21 10485714
22 20971472
23 41942990
24 83886028
25 167772106
26 335544264
27 671088582
28 1342177220
29 2684354498

[1,4,12,30,68,146,304,622,1260,2538,5096,10214,
 20452,40930,81888,163806,327644,655322,1310680,
 2621398,5242836,10485714,20971472,41942990,
 83886028,167772106,335544264,671088582,1342177220,
 2684354498]

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 22 00:25 EDT 2019. Contains 323472 sequences. (Running on oeis4.)