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Search: id:A134770
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| 1, 5, 21, 77, 277, 1005, 3693, 13725, 51477, 19447, 739021, 2821725, 10816621, 41602397
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OFFSET
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1,2
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COMMENT
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Second inverse binomial transform of A134770 = A134771, the sequence interpolated with three's: (1, 3, 5, 3, 21, 3, 77, 3,...).
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EXAMPLE
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a(3) = 21 = 4*A000984(3) - 3 = 4*6 - 3.
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CROSSREFS
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Cf. A000984, A134771.
Sequence in context: A126645 A026329 A014533 this_sequence A084780 A055219 A108863
Adjacent sequences: A134767 A134768 A134769 this_sequence A134771 A134772 A134773
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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), Nov 10 2007
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