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A021014
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a(n)=a(n-1)+a(n-2)-a(n-4)+a(n-5).
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1
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7, 11, 17, 26, 40, 62, 96, 149, 231, 358, 555, 860, 1333, 2066, 3202, 4963, 7692, 11922, 18478, 28639, 44388, 68797, 106629, 165265, 256145, 397001, 615314, 953679, 1478113, 2290936, 3550736, 5503307, 8529609, 13220093, 20489902
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OFFSET
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0,1
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COMMENTS
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Agrees with Pisot sequence P(7,11) only for n <= 20.
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LINKS
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FORMULA
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G.f.: ( -7-4*x+x^2+2*x^3-4*x^4 ) / ( -1+x+x^2-x^4+x^5 ). - R. J. Mathar, Feb 13 2016
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MATHEMATICA
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LinearRecurrence[{1, 1, 0, -1, 1}, {7, 11, 17, 26, 40}, 40] (* Harvey P. Dale, Jul 12 2022 *)
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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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