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A196748
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Numbers n such that 3 and 5 do not divide swing(n) = A056040(n).
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3
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0, 1, 2, 20, 24, 54, 60, 61, 62, 72, 73, 74, 504, 510, 511, 512, 560, 564, 1512, 1513, 1514, 1520, 1620, 1621, 1622, 6320, 6324, 6372, 6373, 6374, 6500, 6504, 6552, 6553, 6554, 6560, 13122, 13123, 13124, 13770, 13771, 13772, 13824, 13850, 15072, 15073, 15074
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OFFSET
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1,3
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LINKS
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Table of n, a(n) for n=1..47.
P. Erdos, R. L. Graham, I. Z. Russa and E. G. Straus, On the prime factors of C(2n,n), Math. Comp. 29 (1975), 83-92.
Peter Luschny, On the prime factors of the swinging factorial.
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MAPLE
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# The function Search is defined in A196747.
A196748_list := n -> Search(n, [3, 5]): # n is a search limit
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CROSSREFS
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Cf. A005836, A129508, A030979, A151750, A196747, A196749, A196750.
Sequence in context: A169965 A202170 A136908 * A144674 A144673 A144672
Adjacent sequences: A196745 A196746 A196747 * A196749 A196750 A196751
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KEYWORD
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nonn
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AUTHOR
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Peter Luschny, Oct 06 2011
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STATUS
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approved
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