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Search: id:A083121
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(list; graph; listen)
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OFFSET
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1,2
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MAPLE
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A083121 := proc(nmax) local a119, anew, asum, n, a; a119 := [1] ; a := [1] ; while nops(a119) < nmax do n := nops(a119)+1 ; if n mod 2 = 0 then anew := 1 ; while anew in a119 do anew := anew+1 ; od ; a119 := [op(a119), anew] ; else asum := add(op(i, a119), i=ceil(n/2)..n-1) ; anew := 1 ; while anew in a119 or not issqr(asum+anew) do anew := anew+1 ; od ; a119 := [op(a119), anew] ; a := [op(a), sqrt(asum+anew)] ; fi ; od; a ; end: A083121(120) ; - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 17 2007
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CROSSREFS
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Cf. A083119.
Adjacent sequences: A083118 A083119 A083120 this_sequence A083122 A083123 A083124
Sequence in context: A039133 A113777 A039096 this_sequence A026438 A026442 A048869
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KEYWORD
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nonn
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AUTHOR
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Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), Apr 23 2003
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EXTENSIONS
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More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 17 2007
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