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Search: id:A049482
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| A049482 |
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Both p and p+Q(4) are primes, where Q(4)=210 is the 4th primorial number (A002110[ 4 ]). |
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+0
3
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| 13, 17, 19, 23, 29, 31, 41, 47, 53, 59, 61, 67, 71, 73, 83, 97, 101, 103, 107, 127, 137, 139, 149, 157, 163, 173, 179, 191, 199, 211, 223, 229, 233, 239, 251, 257, 269, 277, 281, 293, 311, 313, 331, 337, 347, 353, 359, 367, 383, 389, 397, 409, 421, 431, 433
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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p and p+210 are not necessarily consecutive primes
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EXAMPLE
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13 and 13 + 2*3*5*7 = 223 is prime
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MATHEMATICA
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lst={}; Do[p=Prime[n]; If[PrimeQ[p+210], AppendTo[lst, p]], {n, 6!}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Jan 04 2009]
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CROSSREFS
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A045320, A001359, A023201, sequ for p+30
Sequence in context: A034845 A045921 A040136 this_sequence A099651 A156666 A165681
Adjacent sequences: A049479 A049480 A049481 this_sequence A049483 A049484 A049485
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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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