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Search: id:A130759
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| 1, 3, 5, 7, 11, 21, 43, 87, 173, 343, 683, 1365, 2731, 5463, 10925, 21847, 43691, 87381, 174763, 349527, 699053, 1398103, 2796203, 5592405, 11184811, 22369623, 44739245, 89478487, 178956971, 357913941, 715827883, 1431655767, 2863311533
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OFFSET
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0,2
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MAPLE
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A130707 := proc(n) option remember ; if n <= 2 then op(n+1, [1, 2, 2]) ; else 3*(A130707(n-1)-A130707(n-2))+2*A130707(n-3) ; fi ; end: A130759 := proc(n) add(A130707(i), i=0..n) ; end: seq(A130759(n), n=0..40) ; - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Oct 28 2007
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CROSSREFS
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Sequence in context: A133846 A060643 A025077 this_sequence A038890 A023368 A142247
Adjacent sequences: A130756 A130757 A130758 this_sequence A130760 A130761 A130762
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KEYWORD
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nonn
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AUTHOR
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Paul Curtz (bpcrtz(AT)free.fr), Jul 13 2007
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EXTENSIONS
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Better definition and more terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Oct 28 2007
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