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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A136336 a(n)=a(n-1)+4a(n-2)-4a(n-3). 1
1, 2, 4, 7, 15, 27, 59, 107, 235, 427, 939, 1707 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

CROSSREFS

Sequence in context: A002956 A171276 A027167 * A115178 A049885 A129682

Adjacent sequences:  A136333 A136334 A136335 * A136337 A136338 A136339

KEYWORD

nonn

AUTHOR

Paul Curtz (bpcrtz(AT)free.fr), Mar 28 2008

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

Content is available under The OEIS End-User License Agreement .

Last modified February 14 15:39 EST 2012. Contains 205635 sequences.