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Search: id:A031134
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| A031134 |
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Upper prime of a record difference between it and the second prime before it. |
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+0
6
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| 5, 7, 11, 29, 59, 97, 127, 223, 1151, 1361, 2203, 2521, 5639, 9601, 14143, 19661, 19681, 31469, 31477, 38543, 58889, 156007, 360769, 370373, 396871, 1357333, 1562051, 4652507, 8917663, 20831533, 38089453, 70396589, 72546391, 102765847
(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) = A031133(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}]; Last /@ 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, A031133, A122412, A122413.
Sequence in context: A036490 A106330 A057247 this_sequence A050299 A092029 A018426
Adjacent sequences: A031131 A031132 A031133 this_sequence A031135 A031136 A031137
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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.
Corrected and extended by Jud McCranie (j.mccranie(AT)comcast.net), Jan 03 2001
Definition corrected by Jon Schoenfield, Aug 27 2006
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