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Search: id:A094898
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| A094898 |
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Product of two prime sets. |
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+0
1
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| 7, 0, 0, 17, 0, 0, 0, 0, 0, 41, 0, 0, 0, 0, 0, 0, 71, 0, 0, 83, 0, 0, 0, 0, 101, 0, 0, 113, 0, 0, 0, 131, 0, 0, 0, 0, 0, 0, 0, 0, 167, 0, 0, 0, 0, 0, 0, 0, 197, 0, 0, 0, 0, 0, 0, 227, 0, 233, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 281, 0, 0, 0, 0, 0, 0, 311, 0, 317, 0, 0, 0, 0, 0, 0, 0, 0, 353, 0, 0, 0, 0
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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A kind of prime information topology of primes as a product of boths sets being true. This result is a very strange set.
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FORMULA
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a(n) = when the linear combination of information of two prime types of 4*m+1 and 4*m+3 are both prime.
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MATHEMATICA
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a=Table[If[PrimeQ[4*n+1]==True&&PrimeQ[4*n+3]==False, 1, 0], {n, 0, 200}] b=Table[If[PrimeQ[4*n+1]==False&&PrimeQ[4*n+3]==True, 1, 0], {n, 0, 200}] d=Table[If[PrimeQ[a[[n]]*(4*n+1)+b[[n]]*(4*n+3)]==True, a[[n]]*(4*n+1)+b[[n]]*(4*n+3), 0], {n, 1, 200}]
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CROSSREFS
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Cf. A094896, A094897.
Sequence in context: A132712 A021592 A154102 this_sequence A136115 A061846 A121570
Adjacent sequences: A094895 A094896 A094897 this_sequence A094899 A094900 A094901
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KEYWORD
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nonn,uned,obsc
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AUTHOR
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Roger L. Bagula (rlbagulatftn(AT)yahoo.com), Jun 14 2004
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