A013715 a(n) = 10^(2n+1).

10, 1000, 100000, 10000000, 1000000000, 100000000000, 10000000000000, 1000000000000000, 100000000000000000, 10000000000000000000, 1000000000000000000000, 100000000000000000000000

Offset

0,1

Comments

Bisection of A011557 (powers of 10). - Michel Marcus, Jan 17 2016

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 (100).

Formula

From Philippe Deléham, Nov 25 2008: (Start)

G.f.: 10/(1-100*x).

a(n) = 100*a(n-1), n>0; a(0)=10. (End)

Maple

seq(10^(2*n+1), n=0..11); # Nathaniel Johnston, Jun 25 2011

Mathematica

10^(2 Range[0, 15] + 1) (* Wesley Ivan Hurt, Jan 17 2016 *)

Prog

(Magma) [10^(2*n+1): n in [0..20]]; // Vincenzo Librandi, Jun 26 2011
(PARI) a(n) = 10^(2*n+1); \\ Michel Marcus, Jan 17 2016
(PARI) Vec(10/(1-100*x) + O(x^100)) \\ Altug Alkan, Jan 17 2016

Crossrefs

Cf. A013708-A013714, A013716-A013729, A011557.

Sequence in context: A062033 A171500 A154027 * A135612 A110147 A215023

Adjacent sequences: A013712 A013713 A013714 * A013716 A013717 A013718

Keyword

nonn,easy

Author

N. J. A. Sloane

Status

approved