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Search: id:A031133
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| A031133 |
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Lower prime of a record difference between it and the second prime after it. |
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+0 6
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| 2, 3, 5, 19, 47, 83, 109, 199, 1123, 1321, 2161, 2477, 5591, 9551, 14087, 19603, 19609, 31393, 31397, 38461, 58789, 155893, 360653, 370247, 396733, 1357193, 1561891, 4652317, 8917463, 20831299, 38089217, 70396343, 72546143, 102765577
(list; graph; listen)
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OFFSET
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1,1
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LINKS
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Dmitry Kamenetsky (dkamen(AT)rsise.anu.edu.au), Jul 28 2008, Table of n, a(n) for n = 1..55
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FORMULA
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a(n) = A031134(n) - A031132(n). (Robert G. Wilson v)
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MATHEMATICA
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lst = {}; {p, q, r} = {1, 2, 3}; d = 0; Do[{p, q, r} = {q, r, Prime@n}; If[r - p > d, d = r - p; AppendTo[lst, {p, r}]; Print[{p, r-p, r}]], {n, 8050000}]; First /@ lst (from Robert G. Wilson v (rgwv(at)rgwv.com), May 17 2006)
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CROSSREFS
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Cf. A031131, A031132, A031134, A122412, A122413.
Sequence in context: A038705 A066754 A118625 this_sequence A028490 A004064 A164061
Adjacent sequences: A031130 A031131 A031132 this_sequence A031134 A031135 A031136
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KEYWORD
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nonn
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AUTHOR
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Jeff Burch (jmburch(AT)osprey.smcm.edu)
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EXTENSIONS
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Extended (and first term added) by Patrick De Geest (pdg(AT)worldofnumbers.com), 10/2000.
Further extended by Jud McCranie (j.mccranie(AT)comcast.net), Jan 03 2001
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