A085952 First n-digit number that occurs in the sequence A085951.

1, 91, 901, 9001, 90001, 900001, 9000001, 90000001, 900000001, 9000000001, 90000000001, 900000000001, 9000000000001, 90000000000001, 900000000000001, 9000000000000001, 90000000000000001, 900000000000000001

Offset

0,2

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..1000

Index entries for linear recurrences with constant coefficients, signature (11,-10).

Formula

For n > 0, a(n) = 9*10^n + 1. - David Wasserman, Feb 15 2005

Mathematica

Join[{1}, Table[9*10^n+1, {n, 30}]] (* or *) LinearRecurrence[{11, -10}, {1, 91, 901}, 30] (* Harvey P. Dale, Dec 19 2022 *)

Prog

(Magma) [1] cat [9*10^n+1: n in [1..30]]; // Vincenzo Librandi, Nov 09 2011

Crossrefs

Cf. A085951.

Sequence in context: A038488 A213287 A072393 * A129255 A093291 A254519

Adjacent sequences: A085949 A085950 A085951 * A085953 A085954 A085955

Keyword

nonn,easy,base

Author

Amarnath Murthy and Jason Earls, Jul 15 2003

Extensions

Corrected and extended by David Wasserman, Feb 15 2005

Status

approved