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A013783 a(n) = 5^(4*n + 3). 1
125, 78125, 48828125, 30517578125, 19073486328125, 11920928955078125, 7450580596923828125, 4656612873077392578125, 2910383045673370361328125, 1818989403545856475830078125, 1136868377216160297393798828125 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..200

Tanya Khovanova, Recursive Sequences

Index entries for linear recurrences with constant coefficients, signature (625).

FORMULA

From Philippe Deléham, Nov 30 2008: (Start)

a(n) = 625*a(n-1); a(0)=125.

G.f.: 125/(1-625*x).

a(n) = 25*A013782(n). (End)

MATHEMATICA

5^(4*Range[0, 20]+3) (* or *) NestList[625#&, 125, 20] (* Harvey P. Dale, Aug 14 2018 *)

PROG

(MAGMA) [5^(4*n+3): n in [0..15]]; // Vincenzo Librandi, Jun 28 2011

CROSSREFS

Subsequence of A000351.

Sequence in context: A163596 A194654 A222277 * A030697 A265623 A050640

Adjacent sequences:  A013780 A013781 A013782 * A013784 A013785 A013786

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane

STATUS

approved

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Last modified November 13 17:16 EST 2018. Contains 317149 sequences. (Running on oeis4.)