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A199753 4*11^n+1. 1
5, 45, 485, 5325, 58565, 644205, 7086245, 77948685, 857435525, 9431790765, 103749698405, 1141246682445, 12553713506885, 138090848575725, 1518999334332965, 16708992677662605, 183798919454288645, 2021788113997175085 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..900

Index entries for linear recurrences with constant coefficients, signature (12,-11).

FORMULA

a(n) = 5*A083077

a(n) = 11*a(n-1)-10.

a(n) = 12*a(n-1)-11*a(n-2).

G.f.: 5*(1-3*x)/((1-x)*(1-11*x)).

MATHEMATICA

4*11^Range[0, 20]+1 (* or *) LinearRecurrence[{12, -11}, {5, 45}, 20] (* Harvey P. Dale, Mar 28 2012 *)

PROG

(MAGMA)[4*11^n+1: n in [0..30]];

CROSSREFS

Sequence in context: A001449 A209442 A340943 * A220877 A130976 A191095

Adjacent sequences:  A199750 A199751 A199752 * A199754 A199755 A199756

KEYWORD

nonn,easy

AUTHOR

Vincenzo Librandi, Nov 10 2011

STATUS

approved

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Last modified May 8 15:54 EDT 2021. Contains 343666 sequences. (Running on oeis4.)