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Search: id:A034784
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| A034784 |
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The n-th entry is K(n,2) and A034693(K(n,2)) = 2 for all n. The subscript n refers to this sequence and K(n,2) is the index in A034693. Example: K(25,2)=65 and A034693(65)=2. |
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+0
6
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| 3, 5, 8, 9, 11, 14, 15, 20, 21, 23, 26, 29, 33, 35, 39, 41, 44, 48, 50, 51, 53, 54, 56, 63, 65, 68, 69, 74, 75, 81, 83, 86, 89, 90, 95, 98, 99, 105, 111, 113, 114, 116, 119, 120, 125, 128, 131, 134, 135, 140, 141, 146, 153, 155, 158, 165, 168, 173, 174, 176
(list; graph; listen)
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OFFSET
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1,1
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MATHEMATICA
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CompositeNext[n_]:=Module[{k=n+1}, While[PrimeQ[k], k++ ]; k]; lst={}; Do[p=n+CompositeNext[n]; If[PrimeQ[p], AppendTo[lst, n]], {n, 2, 6!}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Jun 15 2009]
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CROSSREFS
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A034693, A034694.
Sequence in context: A047624 A108594 A026223 this_sequence A124401 A151747 A088597
Adjacent sequences: A034781 A034782 A034783 this_sequence A034785 A034786 A034787
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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)
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