login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo

Please make a donation to keep the OEIS running. We are now in our 56th year. In the past year we added 10000 new sequences and reached almost 9000 citations (which often say "discovered thanks to the OEIS").
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A017116 a(n) = (8*n + 4)^4. 1
256, 20736, 160000, 614656, 1679616, 3748096, 7311616, 12960000, 21381376, 33362176, 49787136, 71639296, 100000000, 136048896, 181063936, 236421376, 303595776, 384160000, 479785216, 592240896 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..10000

Index entries for linear recurrences with constant coefficients, signature (5,-10,10,-5,1)

FORMULA

G.f.: -256*(1 + 76*x + 230*x^2 + 76*x^3 + x^4)/(x-1)^5. - R. J. Mathar, May 08 2015

MATHEMATICA

(8*Range[0, 20]+4)^4 (* or *) LinearRecurrence[{5, -10, 10, -5, 1}, {256, 20736, 160000, 614656, 1679616}, 20] (* Harvey P. Dale, Aug 05 2019 *)

PROG

(MAGMA) [(8*n+4)^4: n in [0..35] ]; // Vincenzo Librandi, Jul 21 2011

CROSSREFS

Sequence in context: A090650 A206181 A251968 * A206055 A237134 A205948

Adjacent sequences:  A017113 A017114 A017115 * A017117 A017118 A017119

KEYWORD

nonn,easy

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 | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified November 30 15:14 EST 2020. Contains 338807 sequences. (Running on oeis4.)