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A107901
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Length of continued fraction for prime(n)/n.
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6
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1, 2, 3, 3, 2, 2, 3, 4, 4, 3, 4, 2, 3, 2, 3, 3, 3, 5, 4, 5, 3, 5, 6, 5, 4, 5, 5, 6, 4, 5, 3, 4, 5, 3, 4, 3, 3, 4, 5, 3, 6, 4, 5, 6, 6, 3, 3, 7, 8, 8, 5, 5, 6, 6, 4, 6, 7, 4, 7, 5, 7, 7, 5, 4, 6, 4, 5, 5, 3, 3, 4, 3, 3, 4, 4, 3, 3, 3, 3, 4, 6, 4, 4, 4, 3, 7, 5, 5, 6, 4, 6, 5, 5, 4, 4, 5, 3, 4, 6, 7, 5, 5, 5, 4, 6
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OFFSET
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1,2
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LINKS
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FORMULA
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EXAMPLE
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a(10) = 3 as prime(10)/10 = 29/10 whose continued fraction is [2; 1, 9] having length 3
a(18) = 5 as prime(18)/18 = 61/18 whose continued fraction is [3; 2, 1, 1, 3] having length 5. (End)
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MATHEMATICA
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A107901[n_]=Length[ContinuedFraction[Prime[n]/n]
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PROG
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(PARI) first(n) = my(res = primes(n)); for(i = 1, n, res[i] = #contfrac(res[i]/i)); res \\ David A. Corneth, Jan 09 2024
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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