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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A118417 (2*n + 1) * 2^(n + 1). 3
2, 12, 40, 112, 288, 704, 1664, 3840, 8704, 19456, 43008, 94208, 204800, 442368, 950272, 2031616, 4325376, 9175040, 19398656, 40894464, 85983232, 180355072, 377487360, 788529152, 1644167168 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

COMMENTS

a(n) = A118416(n+1,n) = 2*A014480(n).

MAPLE

a:=n->sum (2^n*n^binomial(j, n), j=1..n): seq(a(n), n=1..25); # [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Apr 18 2009]

PROG

(MAGMA)[(2*n+1)*2^(n+1): n in [0..40]]; [From V. Librandi, Dec 26 2010]

CROSSREFS

Sequence in context: A008911 A005719 * A143126 A069144 A013194 A074447

Adjacent sequences:  A118414 A118415 A118416 * A118418 A118419 A118420

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Apr 27 2006

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 16 19:45 EST 2012. Contains 205951 sequences.