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Search: id:A094272
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| A094272 |
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Least m >= a(n-1)+n such that m!/(m-n)! is a multiple of a(n-1)!/(a(n-1)-(n-1))!. |
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+0
5
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| 1, 3, 6, 10, 16, 52, 1176, 687378, 236241851626, 2197451321740962081109754668237130, 2414396155710550624720051944524837499100253655538086242554948251375
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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a(1)=1. Main diagonal of triangle A094270.
If p is a prime factor of any of a(n-1)-(n-1) to a(n-1), then a(n) mod p < n.
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LINKS
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Martin Fuller, Table of n, a(n) for n = 1..12
Martin Fuller, PARI/GP program for A094272
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EXAMPLE
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Product of the terms of the 4-th row = 7*8*9*10 = 5040. Product of the terms of the 5-th row = 12*13*14*15*16 = 524160 = 104*5040.
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CROSSREFS
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Cf. A094270, A094271, A094273, A094274.
Sequence in context: A033541 A038505 A119971 this_sequence A005045 A069241 A092263
Adjacent sequences: A094269 A094270 A094271 this_sequence A094273 A094274 A094275
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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), Apr 27 2004
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EXTENSIONS
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Edited by Martin Fuller (martin_n_fuller(AT)btinternet.com), Jun 13 2007
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