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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
FORMULA
G.f.: 3169/(1-10042561*x). - Bruno Berselli, Feb 27 2012
E.g.f.: 3169*exp(10042561*x). - Alejandro J. Becerra Jr., Mar 01 2021
MATHEMATICA
3169^(2Range[0, 100]+1) (* Vincenzo Librandi, Feb 26 2012 *)
CROSSREFS
Sequence in context: A309024 A217247 A020420 * A345599 A345858 A129472
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 April 22 01:34 EDT 2024. Contains 371887 sequences. (Running on oeis4.)