A013737 a(n) = 5^(3*n + 2).

25, 3125, 390625, 48828125, 6103515625, 762939453125, 95367431640625, 11920928955078125, 1490116119384765625, 186264514923095703125, 23283064365386962890625, 2910383045673370361328125, 363797880709171295166015625

Offset

0,1

Links

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

Tanya Khovanova, Recursive Sequences

Index entries for linear recurrences with constant coefficients, signature (125).

Formula

From Philippe Deléham, Nov 25 2008: (Start)

a(n) = 125*a(n-1); a(0)=25.

G.f.: 25/(1-125*x). (End)

Maple

seq(5^(3*n+2), n=0..12); # Nathaniel Johnston, Jun 26 2011

Prog

(Magma) [5^(3*n+2): n in [0..20]]; // Vincenzo Librandi, May 25 2011
(PARI) a(n)=5^(3*n+2) \\ Charles R Greathouse IV, Jul 11 2016

Crossrefs

Cf. A013736.

Sequence in context: A078215 A075414 A226277 * A018861 A178188 A203186

Adjacent sequences: A013734 A013735 A013736 * A013738 A013739 A013740

Keyword

nonn,easy

Author

N. J. A. Sloane

Status

approved