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Search: id:A049485
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| A049485 |
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Both p and p+Q(7) are primes, where Q(7)=510510 is the 7th primorial number (A002110[ 7 ]). |
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4
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| 19, 41, 43, 59, 71, 73, 79, 101, 103, 107, 109, 167, 173, 181, 197, 199, 241, 257, 263, 283, 293, 307, 313, 317, 337, 379, 397, 409, 421, 431, 433, 479, 491, 503, 509, 523, 547, 577, 599, 601, 613, 641, 643, 653, 659, 661, 683, 691, 701, 727, 733, 751, 769
(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+510510 are not necessarily consecutive primes
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EXAMPLE
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19 and 19 + 2*3*5*7*11*13*17 = 510529 is prime
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MATHEMATICA
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lst={}; Do[p=Prime[n]; If[PrimeQ[p+510510], 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, sequs for p+primorial cases
Sequence in context: A065349 A085778 A090265 this_sequence A019393 A029489 A155024
Adjacent sequences: A049482 A049483 A049484 this_sequence A049486 A049487 A049488
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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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