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Search: id:A053686
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| A053686 |
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Record gaps between consecutive primes that repeat at least once before a new record occurs. |
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+0
4
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| 2, 4, 6, 14, 34, 36, 52, 86, 132, 154, 250, 336
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Scan the sequence of prime differences (A001223) looking for new records, but append the record difference to the present sequence only if the difference appears at least twice in A001223 before it is beaten by a new record. - N. J. A. Sloane (njas(AT)research.att.com), Dec 30 2007
The sequence of primes where these gaps first appear is A133788.
These are the numbers that appear two or more times in A085237. - David W. Wilson, Dec 31 2007
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CROSSREFS
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Cf. A001223, A053695, A133788, A085237.
Sequence in context: A084685 A151794 A058059 this_sequence A080198 A077637 A077639
Adjacent sequences: A053683 A053684 A053685 this_sequence A053687 A053688 A053689
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KEYWORD
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more,nonn
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AUTHOR
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Jeff Burch (gburch(AT)erols.com), Mar 23 2000
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EXTENSIONS
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More terms from Naohiro Nomoto (6284968128(AT)geocities.co.jp), Jul 23 2001
Corrected by Jorge Coveiro (jorgecoveiro(AT)yahoo.com), Jul 24 2006
More terms from Sam Handler (sam_5_5_5_0(AT)yahoo.com), Sep 13 2006
There were still two erroneous terms. The terms a(1) - a(11) now shown have been verified by Farideh Firoozbakht (mymontain(AT)yahoo.com), Dec 31 2007. Edited by N. J. A. Sloane (njas(AT)research.att.com), Jan 30 2008.
a(12) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Nov 24 2008
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