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A155484 a(n) = 3169^(2n + 1). 1
3169, 31824875809, 319603256629306849, 3209635200498468418800289, 32232957288753099502375449100129, 323701439782697615691675092490440590369 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

3169*a(n) is a square, hence also a(n)^5 + (3*a(n))^5 + (5*a(n))^5 + (7*a(n))^5 + (9*a(n))^5 = 25*3169*a(n)^5 is a square.

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..100

Index entries for linear recurrences with constant coefficients, signature (10042561).

FORMULA

G.f.: 3169/(1-10042561*x). - Bruno Berselli, Feb 27 2012

MATHEMATICA

3169^(2Range[0, 100]+1) (* Vincenzo Librandi, Feb 26 2012 *)

CROSSREFS

Sequence in context: A140350 A217247 A020420 * A129472 A023309 A023337

Adjacent sequences:  A155481 A155482 A155483 * A155485 A155486 A155487

KEYWORD

nonn,easy

AUTHOR

Vincenzo Librandi, Jan 23 2009

EXTENSIONS

Offset from 1 to 0 by Vincenzo Librandi, Feb 26 2012

STATUS

approved

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Last modified June 19 23:01 EDT 2019. Contains 324222 sequences. (Running on oeis4.)