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A005443
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a(n) = n! * Fibonacci(n).
(Formerly M2034)
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11
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0, 1, 2, 12, 72, 600, 5760, 65520, 846720, 12337920, 199584000, 3552595200, 68976230400, 1450895846400, 32866215782400, 797681364480000, 20650793619456000, 568032822669312000, 16543733655601152000, 508598164809326592000, 16458582085314969600000
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OFFSET
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0,3
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REFERENCES
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N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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LINKS
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FORMULA
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MAPLE
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ZL:=[S, {a = Atom, b = Atom, S = Prod(X, Sequence(Prod(X, b))), X = Sequence(b, card >= 1)}, labelled]: seq(combstruct[count](ZL, size=n), n=0..18); # Zerinvary Lajos, Mar 26 2008
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MATHEMATICA
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PROG
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(Magma) [Factorial(n)*Fibonacci(n): n in [0..30]]; // G. C. Greubel, Nov 20 2022
(SageMath) [fibonaccI9n)*factorial(n) for n in range(31)] # G. C. Greubel, Nov 20 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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EXTENSIONS
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STATUS
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approved
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