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A206641
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Fibonacci sequence beginning 14, 9.
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1
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14, 9, 23, 32, 55, 87, 142, 229, 371, 600, 971, 1571, 2542, 4113, 6655, 10768, 17423, 28191, 45614, 73805, 119419, 193224, 312643, 505867, 818510, 1324377, 2142887, 3467264, 5610151, 9077415, 14687566, 23764981, 38452547, 62217528, 100670075, 162887603
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OFFSET
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1,1
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LINKS
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FORMULA
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a(n) = a(n-1) + a(n-2) for n > 2.
a(n) = 14*Fibonacci(n) - 5*Fibonacci(n-1).
G.f.: x*(14 - 5*x)/(1 - x - x^2). (End)
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MATHEMATICA
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LinearRecurrence[{1, 1}, {14, 9}, 80]
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PROG
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(Magma) I:=[14, 9]; [n le 2 select I[n] else Self(n-1)+ Self(n-2): n in [1..40]]; \\ Vincenzo Librandi, Feb 18 2012
(PARI) Vec((14 - 5*x)/(1 - x - x^2) + O(x^30)) \\ Andrew Howroyd, Aug 28 2018
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CROSSREFS
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KEYWORD
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nonn,easy,changed
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AUTHOR
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STATUS
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approved
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