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3, 23, 243, 2663, 29283, 322103, 3543123, 38974343, 428717763, 4715895383, 51874849203, 570623341223, 6276856753443, 69045424287863, 759499667166483, 8354496338831303, 91899459727144323, 1010894056998587543, 11119834626984462963
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history;
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OFFSET
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0,1
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LINKS
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Vincenzo Librandi, Table of n, a(n) for n = 0..900
Index entries for linear recurrences with constant coefficients, signature (12,-11).
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FORMULA
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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)).
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MATHEMATICA
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2*11^Range[0, 20]+1 (* or *) LinearRecurrence[{12, -11}, {3, 23}, 20] (* Harvey P. Dale, Aug 14 2012 *)
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PROG
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(Magma) [2*11^n+1: n in [0..30]];
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CROSSREFS
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Sequence in context: A278745 A122009 A151433 * A318004 A098681 A118790
Adjacent sequences: A199747 A199748 A199749 * A199751 A199752 A199753
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KEYWORD
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nonn,easy
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AUTHOR
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Vincenzo Librandi, Nov 10 2011
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STATUS
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approved
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