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9, 41, 201, 1001, 5001, 25001, 125001, 625001, 3125001, 15625001, 78125001, 390625001, 1953125001, 9765625001, 48828125001, 244140625001, 1220703125001, 6103515625001, 30517578125001, 152587890625001, 762939453125001
(list;
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refs;
listen;
history;
text;
internal format)
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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..1000
Index entries for linear recurrences with constant coefficients, signature (6,-5).
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FORMULA
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a(n) = 5*a(n-1)-4.
a(n) = 6*a(n-1)-5*a(n-2).
G.f.: (9-13*x)/((1-x)*(1-5*x)).
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MATHEMATICA
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8*5^Range[0, 30]+1 (* or *) LinearRecurrence[{6, -5}, {9, 41}, 30] (* Harvey P. Dale, Feb 20 2015 *)
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PROG
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(Magma) [8*5^n+1: n in [0..30]];
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CROSSREFS
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Sequence in context: A083584 A276780 A183916 * A146239 A083085 A147283
Adjacent sequences: A199308 A199309 A199310 * A199312 A199313 A199314
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KEYWORD
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nonn,easy
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AUTHOR
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Vincenzo Librandi, Nov 05 2011
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STATUS
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approved
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