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!)
A114122 Expansion of (1+x)^2/(1+2x-4x^3-4x^4). 1
1, 0, 1, 2, 0, 4, 4, 0, 16, 0, 16, 32, 0, 64, 64, 0, 256, 0, 256, 512, 0, 1024, 1024, 0, 4096, 0, 4096, 8192, 0, 16384, 16384, 0, 65536, 0, 65536, 131072, 0, 262144, 262144, 0, 1048576 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,4
COMMENTS
Binomial transform is A116404.
LINKS
FORMULA
a(n)=-2a(n-1)+4a(n-3)+4a(n-4)
CROSSREFS
Sequence in context: A103328 A344563 A167312 * A319934 A219836 A004174
KEYWORD
easy,nonn
AUTHOR
Paul Barry, Feb 07 2006
STATUS
approved

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 24 08:28 EDT 2024. Contains 371927 sequences. (Running on oeis4.)