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Search: id:A058656
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| 1, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 3, 8, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 3, 2, 1, 2, 1, 2, 1, 2, 1, 12, 1, 2, 3, 8, 1, 2, 1, 2, 5, 2, 1, 2, 1, 2, 1, 4, 1, 2, 1, 8, 3, 2, 1, 2, 1, 2, 3, 4, 1, 6, 1, 2, 1, 2, 1, 2, 1, 2, 3, 4, 1, 6, 1, 2, 1, 2, 1, 2, 1, 2, 3, 8, 1, 2, 1, 4, 1, 2, 1, 24, 1, 2, 3, 20, 1, 2, 1
(list; graph; listen)
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OFFSET
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0,3
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COMMENT
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Compare sequences: GCD[x,Phi(n)], where x=n-1,n or n+1.
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EXAMPLE
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For n=12,13,14,15, n+1=13,14,15,16, Phi(n)=4,12,12,8 and a(n)=GCD[13,4],GCD[14,12],GCD[15,12],GCD[16,8]=1,2,3,8 resp.
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CROSSREFS
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A000010, A009195, A058515.
Sequence in context: A161302 A161277 A160981 this_sequence A033111 A078313 A025827
Adjacent sequences: A058653 A058654 A058655 this_sequence A058657 A058658 A058659
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KEYWORD
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nonn
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AUTHOR
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Labos E. (labos(AT)ana.sote.hu), Dec 28 2000
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