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!)

A188242 as a simple table

n a(n)
1 16
2 20
3 120
4 300
5 1284
6 4132
7 16272
8 57808
9 223308
10 828456
11 3193588
12 12106616
13 46777036
14 179484068
15 695670728
16 2689241588
17 10454975104
18 40616587968
19 158328346172
20 617266507080
21 2411727117520
22 9427476168776
23 36906793159556

[16,20,120,300,1284,4132,16272,57808,223308,
 828456,3193588,12106616,46777036,179484068,
 695670728,2689241588,10454975104,40616587968,
 158328346172,617266507080,2411727117520,
 9427476168776,36906793159556]

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 December 6 13:37 EST 2022. Contains 358638 sequences. (Running on oeis4.)