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A053075
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Primes p(k) such that p(k)-p(k-1)=p(k+1)-p(k)=30.
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4
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69623, 110681, 134639, 228677, 237821, 250919, 303187, 318949, 396479, 421943, 498301, 507461, 535273, 554347, 629653, 642457, 642487, 668273, 692191, 716033, 729821, 780553, 782611, 790927, 801247, 825161, 829319, 847423, 892321, 902903
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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LINKS
| Zak Seidov, Table of n, a (n) for n = 1 .. 1000
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EXAMPLE
| 110681 is separated from both the next lower prime and the next higher prime by 30
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MATHEMATICA
| lst={}; Do[p=Prime[n]; If[p-Prime[n-1]==Prime[n+1]-p==6*5, AppendTo[lst, p]], {n, 2, 2*8!}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), May 20 2010]
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CROSSREFS
| Cf. A052195.
Sequence in context: A162989 A052195 A089218 * A154818 A116502 A190934
Adjacent sequences: A053072 A053073 A053074 * A053076 A053077 A053078
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KEYWORD
| easy,nonn
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AUTHOR
| Harvey P. Dale (hpd1(AT)is2.nyu.edu), Feb 25 2000
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