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

 

Logo

Annual Appeal: Today, Nov 11 2014, is the 4th anniversary of the launch of the new OEIS web site. 70,000 sequences have been added in these four years, all edited by volunteers. Please make a donation (tax deductible in the US) to help keep the OEIS running.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A001547 (7*n+1)*(7*n+2)*(7*n+4). 1
8, 792, 4320, 12650, 27840, 51948, 87032, 135150, 198360, 278720, 378288, 499122, 643280, 812820, 1009800, 1236278, 1494312, 1785960, 2113280, 2478330, 2883168, 3329852, 3820440, 4356990, 4941560, 5576208, 6262992, 7003970, 7801200, 8656740, 9572648 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

T. D. Noe, Table of n, a(n) for n = 0..1000

FORMULA

a(0)=8, a(1)=792, a(2)=4320, a(3)=12650, a(n)=4*a(n-1)-6*a(n-2)+4*a(n-3)-a(n-4). - Harvey P. Dale, Jan 12 2013

MATHEMATICA

Times@@@Table[7n+{1, 2, 4}, {n, 0, 30}] (* or *) LinearRecurrence[{4, -6, 4, -1}, {8, 792, 4320, 12650}, 40] (* Harvey P. Dale, Jan 12 2013 *)

CROSSREFS

Sequence in context: A060183 A145415 A204464 * A168310 A220186 A054945

Adjacent sequences:  A001544 A001545 A001546 * A001548 A001549 A001550

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

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

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

Last modified December 20 15:01 EST 2014. Contains 252266 sequences.