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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A017080 a(n) = (8*n + 1)^4. 1
1, 6561, 83521, 390625, 1185921, 2825761, 5764801, 10556001, 17850625, 28398241, 43046721, 62742241, 88529281, 121550625, 163047361, 214358881, 276922881, 352275361, 442050625, 547981281, 671898241 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

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.: -(1 + 6556*x + 50726*x^2 + 38620*x^3 + 2401*x^4)/(x-1)^5. - R. J. Mathar, Jul 14 2016

PROG

[(8*n+1)^4: n in [0..40]]; // Vincenzo Librandi, Jul 11 2011

CROSSREFS

Sequence in context: A043456 A255114 A255629 * A017164 A017380 A017500

Adjacent sequences:  A017077 A017078 A017079 * A017081 A017082 A017083

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 April 25 16:59 EDT 2019. Contains 322461 sequences. (Running on oeis4.)