A191560 a(n) = 25^(4*n+3).

15625, 6103515625, 2384185791015625, 931322574615478515625, 363797880709171295166015625, 142108547152020037174224853515625, 55511151231257827021181583404541015625, 21684043449710088680149056017398834228515625, 8470329472543003390683225006796419620513916015625

Offset

0,1

Comments

Subsequence of A000351. - Michel Marcus, Jun 12 2016.

Links

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

Index entries for linear recurrences with constant coefficients, signature (390625).

Formula

G.f.: (15625)/(1-390625*x). - Vincenzo Librandi, Jun 12 2016

a(n) = 5^(8*n+6) = 5^(2*(4*n+3)) from Michel Marcus Jun 12 2016

Mathematica

Table[25^(4 n + 3), {n, 0, 10}] (* Vincenzo Librandi, Jun 12 2016 *)

Prog

(Magma) [25^(4*n+3): n in [0..10]]

Crossrefs

Sequence in context: A017586 A223320 A222280 * A253172 A253173 A195814

Adjacent sequences: A191557 A191558 A191559 * A191561 A191562 A191563

Keyword

nonn,easy

Author

Vincenzo Librandi, Jul 07 2011

Status

approved