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Search: id:A090832
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| A090832 |
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Numbers n such that p(n), p(n)+6, p(n)+12, p(n)+18 are consecutive primes, where p(n) denotes n-th prime. |
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9
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| 54, 271, 464, 682, 709, 821, 829, 1510, 1594, 1726, 1842, 1853, 2009, 2086, 2209, 2600, 2876, 3253, 3303, 5463, 5689, 6252, 6386, 7064, 7438, 7620, 7728, 7918, 8090, 8145, 8229, 8631, 8654, 8828, 9105, 9184, 9243, 9997, 10052, 10074, 10329, 10934
(list; graph; listen)
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OFFSET
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1,1
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LINKS
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Zak Seidov, Table of n, a(n) for n = 1..1581
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EXAMPLE
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p(271)=1741: 1741,1747,1753,1759 are consecutive primes,1747=1741+6,1753=1741+12,1759=1741+18
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MATHEMATICA
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p[n_]:=Prime[n]; Select[Range[15000], p[ #+1]-p[ # ]==p[ #+2]-p[ #+1]==p[ #+3]-p[ #+2]==6&] - Zak Seidov (zakseidov(AT)yahoo.com), Mar 05 2006
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CROSSREFS
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Cf. A033451, A090833, A090834, A090835, A090836, A090837, A090838, A090839.
Sequence in context: A068380 A124007 A102838 this_sequence A086577 A128961 A090835
Adjacent sequences: A090829 A090830 A090831 this_sequence A090833 A090834 A090835
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KEYWORD
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easy,nonn
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AUTHOR
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Pierre CAMI (colettecami(AT)aol.com), Dec 09 2003
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EXTENSIONS
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Corrected and extended by Zak Seidov (zakseidov(AT)yahoo.com), Mar 05 2006
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