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Search: id:A133702
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| 1, 2, 4, 3, 4, 8, 4, 4, 9, 8, 4, 12, 4, 8, 16, 5, 6, 18, 4, 12, 16, 8, 4, 16, 9, 8, 16, 12, 4, 32, 8, 6, 16, 12, 16, 27, 4, 8, 16, 16, 6, 32, 8, 12, 36, 8, 4, 20, 9, 18, 24, 12, 4, 32, 16, 16, 16, 8, 4, 48, 4, 16, 44, 7, 20, 32, 4, 18, 16, 32, 4, 36, 10, 8, 36, 12, 16, 32, 4, 20, 25, 12, 4, 48
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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A023136 = (1, 1, 3, 1, 3, 3, 3, 1, 5, 3,...)
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FORMULA
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Inverse Mobius transform of A023136.
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EXAMPLE
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a(4) = 3 = (1, 1, 0, 1) * (1, 1, 3, 1) = (1, 1, 0, 1), row 4 of triangle A133701.
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CROSSREFS
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Cf. A051731, A133698, A023136.
Sequence in context: A089169 A087794 A050514 this_sequence A080001 A136743 A011387
Adjacent sequences: A133699 A133700 A133701 this_sequence A133703 A133704 A133705
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KEYWORD
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nonn
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AUTHOR
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Gary W. Adamson (qntmpkt(AT)yahoo.com), Sep 21 2007
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EXTENSIONS
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More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jan 19 2009
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