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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A087431 0^n/2+2^n(n^2+n+2)/4. 0
1, 2, 8, 28, 88, 256, 704, 1856, 4736, 11776, 28672, 68608, 161792, 376832, 868352, 1982464, 4489216, 10092544, 22544384, 50069504, 110624768, 243269632, 532676608, 1161822208, 2524971008, 5469372416, 11811160064, 25434259456 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

COMMENTS

Binomial transform of A080335 (with additional leading 1). a(n+1)=2*A007466(n).

CROSSREFS

Sequence in context: A135263 A048497 A118047 * A176758 A178222 A090426

Adjacent sequences:  A087428 A087429 A087430 * A087432 A087433 A087434

KEYWORD

easy,nonn

AUTHOR

Paul Barry (pbarry(AT)wit.ie), Sep 02 2003

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 15 17:46 EST 2012. Contains 205835 sequences.