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Search: id:A137796
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| A137796 |
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Prime numbers p such that p+12 and p-12 are primes. |
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+0
2
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| 17, 19, 29, 31, 41, 59, 71, 101, 139, 151, 179, 211, 239, 251, 269, 281, 409, 421, 431, 479, 491, 619, 631, 739, 809, 941, 1009, 1021, 1051, 1289, 1291, 1439, 1459, 1471, 1499, 1511, 1571, 1609, 1709, 1721, 1789, 1889, 1901, 1999, 2099, 2141, 2281, 2411
(list; graph; listen)
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OFFSET
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1,1
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FORMULA
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A092216 INTERSECT A046133. - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), May 03 2008
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EXAMPLE
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17+-12=primes
19+-12=primes
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MAPLE
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isA092216 := proc(n) RETURN(isprime(n) and isprime(n-12) ) ; end: isA046133 := proc(n) RETURN(isprime(n) and isprime(n+12) ) ; end: isA137796 := proc(n) RETURN(isA092216(n) and isA046133(n)) ; end: for i from 1 to 400 do if isA137796(ithprime(i)) then printf("%d, ", ithprime(i)) ; fi ; od: - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), May 03 2008
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MATHEMATICA
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a=12; Select[Table[Prime[n], {n, 10^3}], PrimeQ[ #-a]&&PrimeQ[ #+a] &]
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CROSSREFS
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Cf. A092216, A046133. Note that this is different from A137873.
Sequence in context: A096990 A053689 A060254 this_sequence A125213 A132246 A038969
Adjacent sequences: A137793 A137794 A137795 this_sequence A137797 A137798 A137799
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KEYWORD
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nonn
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AUTHOR
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Vladimir Orlovsky (4vladimir(AT)gmail.com), Apr 28 2008
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EXTENSIONS
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Corrected and extended by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), May 03 2008
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