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A083105
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Second-order linear recurrence sequence with a(n) = a(n-1) + a(n-2).
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9
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62638280004239857, 49463435743205655, 112101715747445512, 161565151490651167, 273666867238096679, 435232018728747846, 708898885966844525, 1144130904695592371, 1853029790662436896, 2997160695358029267, 4850190486020466163, 7847351181378495430
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OFFSET
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0,1
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COMMENTS
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a(0) = 62638280004239857, a(1) = 49463435743205655. This is a second-order linear recurrence sequence with a(0) and a(1) coprime that does not contain any primes. It was found by D. E. Knuth in 1990.
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LINKS
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FORMULA
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G.f.: (62638280004239857-13174844261034202*x)/(1-x-x^2). [Colin Barker, Jun 19 2012]
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MAPLE
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a:= n-> (<<0|1>, <1|1>>^n. <<62638280004239857, 49463435743205655>>)[1, 1]:
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MATHEMATICA
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LinearRecurrence[{1, 1}, {62638280004239857, 49463435743205655}, 20] (* Paolo Xausa, Nov 07 2023 *)
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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