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A161724
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Primes n such that also n-24 and n+24 are primes.
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1
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29, 37, 43, 47, 83, 103, 107, 113, 127, 173, 257, 293, 307, 373, 397, 433, 443, 463, 467, 523, 547, 593, 617, 677, 733, 797, 853, 863, 883, 887, 953, 1063, 1093, 1283, 1303, 1423, 1447, 1583, 1723, 1777, 1847, 1973, 2003, 2063, 2087, 2113, 2137, 2333, 2357
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OFFSET
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1,1
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COMMENTS
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Apart from the first term, values are 3 or 7 mod 10.
Solutions of the equation (n-24)' + n' + (n+24)' = 3, where n' is the arithmetic derivative of n. [Paolo P. Lava, Nov 08 2012]
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LINKS
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Table of n, a(n) for n=1..49.
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EXAMPLE
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29-24=5,29+24=53; ...
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MATHEMATICA
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q=6*4; lst={}; Do[p=Prime[n]; If[PrimeQ[p-q] && PrimeQ[p+q], AppendTo[lst, p]], {n, 5000}]; lst
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CROSSREFS
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Cf. A006489, A137796, A161723.
Sequence in context: A127956 A166088 A172195 * A046502 A049746 A097997
Adjacent sequences: A161721 A161722 A161723 * A161725 A161726 A161727
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KEYWORD
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nonn,easy
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AUTHOR
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Vladimir Joseph Stephan Orlovsky, Jun 17 2009
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EXTENSIONS
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Definition edited by Emeric Deutsch, Jun 28 2009
Comment from Charles R Greathouse IV, Oct 12 2009
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STATUS
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approved
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