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4, 6, 6, 10, 8, 6, 10, 8, 10, 8, 10, 12, 6, 6, 18, 8, 12, 12, 10, 8, 12, 6, 24, 6, 10, 12, 12, 8, 10, 12, 18, 6, 20, 12, 10, 14, 10, 14, 12, 12, 12, 10, 14, 6, 16, 12, 12, 18, 20, 16, 12, 8, 16, 8, 12, 6, 22, 6, 12, 14, 10, 18, 18, 14, 10, 14, 12, 18, 22, 12, 6, 12, 18, 6, 18, 6, 24
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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COMMENTS
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All terms are even. Do all even numbers (A005843) appear at least once?
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LINKS
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G. C. Greubel, Table of n, a(n) for n = 1..5000
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FORMULA
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a(n) = A001223(2n) + A001223(2n+1). - R. J. Mathar, Feb 27 2009
a(n) = A031131(2n). - R. J. Mathar, Feb 27 2009
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MATHEMATICA
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Table[Prime[2*n+2] - Prime[2 n], {n, 80}] (* G. C. Greubel, Jun 05 2021 *)
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PROG
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(Sage) [nth_prime(2*n+2) - nth_prime(2*n) for n in (1..80)] # G. C. Greubel, Jun 05 2021
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CROSSREFS
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Cf. A005843, A031215.
Cf. A001223, A031131, A110854, A155067.
Sequence in context: A183986 A160995 A215454 * A159475 A098350 A276269
Adjacent sequences: A155747 A155748 A155749 * A155751 A155752 A155753
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KEYWORD
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nonn,easy
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AUTHOR
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Paul Curtz, Jan 26 2009
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EXTENSIONS
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Edited and extended by R. J. Mathar, Feb 27 2009
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STATUS
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approved
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