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Search: id:A161415
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| 1, 8, 12, 28, 12, 36, 36, 92, 12, 36, 36, 108, 36, 108, 108, 292, 12
(list; graph; listen)
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OFFSET
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1,2
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LINKS
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O. E. Pol, Illustration of initial terms [From Omar E. Pol (info(AT)polprimos.com), Nov 11 2009]
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FORMULA
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For n > 1, a(n) = 4*A048883(n-1), except a(n) = 4*A048883(n-1) - 2n if n is a power of 2. - N. J. A. Sloane, Jul 13 2009
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CROSSREFS
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Cf. A139250, A139251, A160411, A160413, A160414, A160417.
Cf. A160727.
Cf. A048883, A161411, A162349. [From Omar E. Pol (info(AT)polprimos.com), Nov 11 2009]
Sequence in context: A045523 A006983 A072327 this_sequence A117802 A083485 A066934
Adjacent sequences: A161412 A161413 A161414 this_sequence A161416 A161417 A161418
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KEYWORD
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more,nonn
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AUTHOR
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Omar E. Pol (info(AT)polprimos.com), May 20 2009, Jun 13 2009
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