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Search: id:A066616
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| A066616 |
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a(1) = 1; a(n) = n*a(n-1) if n does not divide a(n-1), otherwise a(n) = a(n-1). |
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1
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| 1, 2, 6, 24, 120, 120, 840, 840, 7560, 7560, 83160, 83160, 1081080, 1081080, 1081080, 17297280, 294053760, 294053760, 5587021440, 5587021440, 5587021440, 5587021440, 128501493120, 128501493120, 3212537328000, 3212537328000
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OFFSET
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1,2
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EXAMPLE
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a(5) = 120; as 6 divides a(5), we have a(6) = a(5) = 120. Though 9 is not coprime to a(8) but still 9 does not divide a(8) so a(9) = a(8).
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CROSSREFS
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Cf. A037992.
Sequence in context: A008336 A033643 A050211 this_sequence A083267 A130480 A048631
Adjacent sequences: A066613 A066614 A066615 this_sequence A066617 A066618 A066619
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KEYWORD
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nonn
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AUTHOR
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Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Dec 24 2001
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EXTENSIONS
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More terms from Vladeta Jovovic (vladeta(AT)Eunet.yu), Dec 26 2001
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