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Search: id:A103585
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| A103585 |
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Consider numbers k such that (A102370(k)-k)/2 = 1; read them mod 4 to get the sequence. |
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+0
3
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| 1, 3, 3, 1, 3, 3, 1, 3, 3, 1, 3, 1, 3, 3, 1, 3, 3, 1, 3, 3, 1, 3, 1, 3, 3, 1, 3, 3, 1, 3, 3, 1, 3, 1, 3, 3, 1, 3, 3, 1, 3, 3, 3, 1, 3, 3, 1, 3, 3, 1, 3, 3, 1, 3, 1, 3, 3, 1, 3, 3, 1, 3, 3, 1, 3, 1, 3, 3, 1, 3, 3, 1, 3, 3, 1, 3, 1, 3, 3, 1, 3, 3, 1, 3, 3, 3, 1, 3, 3, 1, 3, 3, 1, 3, 3, 1, 3, 1, 3
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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Is there a self-contained construction of this two-valued sequence?
Sequence appears to have period 43. - Ralf Stephan, May 18 2007
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REFERENCES
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David Applegate, Benoit Cloitre, Philippe DELEHAM and N. J. A. Sloane, Sloping binary numbers: a new sequence related to the binary numbers, J. Integer Seq. 8 (2005), no. 3, Article 05.3.6, 15 pp.
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LINKS
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David Applegate, Benoit Cloitre, Philippe DELEHAM and N. J. A. Sloane, Sloping binary numbers: a new sequence related to the binary numbers [pdf, ps].
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EXAMPLE
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The numbers k are 1, 3, 7, 9, 11, 15, 17, 19, ...
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CROSSREFS
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Cf. A102370, A103587.
Sequence in context: A039992 A101988 A088420 this_sequence A154595 A144437 A138071
Adjacent sequences: A103582 A103583 A103584 this_sequence A103586 A103587 A103588
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KEYWORD
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nonn
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AUTHOR
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Benoit Cloitre (benoit7848c(AT)orange.fr) and Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Mar 24 2005
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