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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A054768 a[n+2] = (2n+3) a[n+1] + (n+1)^2 a[n]. 0
-2, 1, 1, 9, 72, 792, 10512, 165168, 2992608, 61445088, 1409857920, 35751525120, 992877886080, 29970166769280, 976990865518080, 34206887786803200, 1280236466132467200, 51004766655793036800, 2155155171665039308800 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..18.

K. S. Brown, Integer Sequences Related To PI

CROSSREFS

Sequence in context: A176417 A119731 A155718 * A104251 A153731 A154989

Adjacent sequences:  A054765 A054766 A054767 * A054769 A054770 A054771

KEYWORD

sign,easy

AUTHOR

N. J. A. Sloane, May 26 2000

EXTENSIONS

More terms from James A. Sellers, May 27 2000

STATUS

approved

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 June 19 16:47 EDT 2013. Contains 226415 sequences.