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Search: id:A130237
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| 0, 2, 6, 12, 16, 25, 30, 35, 48, 54, 60, 66, 72, 91, 98, 105, 112, 119, 126, 133, 140, 168, 176, 184, 192, 200, 208, 216, 224, 232, 240, 248, 256, 264, 306, 315, 324, 333, 342, 351, 360, 369, 378, 387, 396, 405, 414, 423, 432, 441, 450, 459, 468, 477, 486, 550
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OFFSET
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0,2
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FORMULA
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a(n)=n*max(k | Fib(k)<=n)=n*A130233(n)=n*floor(arsinh(sqr(5)*n/2)/ln(phi)). G.f.: g(x)=1/(1-x)*sum{k>=1, (Fib(k)+x/(1-x))*x^Fib(k)}.
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CROSSREFS
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Partial sums: A130238. Other related sequences: A000045, A130233, A130234, A130235, A130236, A130238, A130239, A130240, A130243, A130246, A130248, A130239, A130251, A130253, A130257, A130261.
Sequence in context: A143408 A088915 A084790 this_sequence A053457 A154030 A055560
Adjacent sequences: A130234 A130235 A130236 this_sequence A130238 A130239 A130240
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KEYWORD
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nonn
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AUTHOR
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Hieronymus Fischer (Hieronymus.Fischer(AT)gmx.de), May 17 2007
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