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A154760
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Final digit of n!! (A006882).
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0
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1, 1, 2, 3, 8, 5, 8, 5, 4, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0
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OFFSET
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0,3
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COMMENTS
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LINKS
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EXAMPLE
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The final digit of n! is 1,2,6,4,0,0,0,0,0,0,0,0,0,...
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MATHEMATICA
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Join[Mod[Range[0, 8]!!, 10], PadRight[{}, 120, {5, 0}]] (* Harvey P. Dale, Dec 16 2023 *)
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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Kousaka Hideaki (kousaka(AT)d6.dion.ne.jp), Jan 15 2009
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EXTENSIONS
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Offset corrected, more terms added by R. J. Mathar, Jan 18 2009
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STATUS
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approved
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