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A199750 2*11^n+1. 1
3, 23, 243, 2663, 29283, 322103, 3543123, 38974343, 428717763, 4715895383, 51874849203, 570623341223, 6276856753443, 69045424287863, 759499667166483, 8354496338831303, 91899459727144323, 1010894056998587543, 11119834626984462963 (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) = 11*a(n-1)-10.

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

G.f.: (3-13*x)/((1-x)*(1-11*x)).

MATHEMATICA

2*11^Range[0, 20]+1 (* or *) LinearRecurrence[{12, -11}, {3, 23}, 20] (* Harvey P. Dale, Aug 14 2012 *)

PROG

(MAGMA) [2*11^n+1: n in [0..30]];

CROSSREFS

Sequence in context: A278745 A122009 A151433 * A318004 A098681 A118790

Adjacent sequences:  A199747 A199748 A199749 * A199751 A199752 A199753

KEYWORD

nonn,easy

AUTHOR

Vincenzo Librandi, Nov 10 2011

STATUS

approved

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Last modified January 21 19:21 EST 2022. Contains 350480 sequences. (Running on oeis4.)