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A082509
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Differences between consecutive primes being not powers of 2 in order of their appearance. Differences which are powers of 2 are omitted from A001223.
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2
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6, 6, 6, 6, 6, 6, 6, 14, 6, 10, 6, 6, 6, 6, 10, 12, 12, 6, 10, 6, 6, 6, 6, 10, 14, 14, 6, 10, 6, 6, 6, 6, 10, 10, 6, 6, 12, 6, 12, 18, 6, 10, 6, 6, 6, 10, 6, 6, 6, 6, 12, 10, 6, 6, 12, 6, 10, 10, 6, 6, 6, 14, 10, 12, 10, 10, 14, 14, 20, 10, 6, 6, 14, 6, 6, 6, 12, 6, 10, 6, 10, 10, 6, 18, 6, 6, 6
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OFFSET
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1,1
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LINKS
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Table of n, a(n) for n=1..87.
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MATHEMATICA
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Do[s=Log[2, Prime[n+1]-Prime[n]]; If[ !IntegerQ[s], Print[Prime[n+1]]], {n, 1, 1000}]
Module[{nn=250, twos}, twos=2^Range[0, Floor[Log[2, Prime[nn]]]]; Select[ Differences[ Prime[Range[nn]]], !MemberQ[twos, #]&]] (* Harvey P. Dale, Apr 18 2012 *)
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CROSSREFS
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Cf. A001223, A082508.
Sequence in context: A177057 A082510 A113427 * A226280 A103337 A241155
Adjacent sequences: A082506 A082507 A082508 * A082510 A082511 A082512
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KEYWORD
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nonn
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AUTHOR
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Labos Elemer, Apr 28 2003
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STATUS
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approved
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