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22, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44, 1, 44
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,1
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LINKS
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FORMULA
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a(n) = (45+43*(-1)^n)/2 for n>0.
a(n) = a(n-2) for n>2.
G.f.: -(22*x^2+x+22) / ((x-1)*(x+1)). (End)
Multiplicative with a(2^e) = 44, and a(p^e) = 1 for an odd prime p.
Dirichlet g.f.: zeta(s) * (1 + 43/2^s). (End)
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MAPLE
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with(numtheory): Digits := 300: convert(evalf(sqrt(528)), confrac);
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MATHEMATICA
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ContinuedFraction[Sqrt[528], 100] (* Amiram Eldar, Dec 26 2023 *)
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PROG
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(PARI) Vec(-(22*x^2+x+22)/((x-1)*(x+1)) + O(x^100)) \\ Colin Barker, Nov 10 2014
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CROSSREFS
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KEYWORD
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nonn,cofr,easy,less,mult
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AUTHOR
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STATUS
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approved
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