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Search: id:A075068
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| A075068 |
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Product of p(n) primes starting from p(n). |
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+0
2
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| 6, 105, 85085, 215656441, 2928046583754721, 50774191064678342417, 8893257265710151560293840093, 456136734556614681201275816106457, 413876828984538288243690385880996726353717
(list; graph; listen)
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OFFSET
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1,1
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FORMULA
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a(n) = A002110(n - 1 + A000040(n)) / A002110(n - 1). - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jan 06 2005
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EXAMPLE
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a(1) = 2*3=6, a(2) = 3*5*7= 105, a(4) = product of 7 primes, from 7 up to 29.
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CROSSREFS
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Sequence in context: A109819 A162130 A048707 this_sequence A055763 A083432 A006453
Adjacent sequences: A075065 A075066 A075067 this_sequence A075069 A075070 A075071
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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), Sep 08 2002
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EXTENSIONS
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More terms from David Wasserman (dwasserm(AT)earthlink.net), Jan 04 2005
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