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Search: id:A064486
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| A064486 |
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Quotient cycle lengths of square roots of primorials. |
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+0
1
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| 1, 2, 2, 2, 2, 4, 2, 36, 38, 244, 244, 1830, 3422, 10626, 3828, 20970, 580384, 4197850
(list; graph; listen)
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OFFSET
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1,2
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EXAMPLE
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n=6: cfrac(sqrt(30030),'periodic','quotients')=[[173], [3, 2, 3, 346]], so a(6)=4
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MAPLE
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with(numtheory): [seq(nops(cfrac(sqrt(product(ithprime(j), j=1..k)), 'periodic', 'quotients')[2]), k=1..14)];
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MATHEMATICA
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Table[Length[Part[ContinuedFraction[Sqrt[q[u]]], 2]], {u, 1, 18}]
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CROSSREFS
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A002110.
Sequence in context: A049047 A037088 A153436 this_sequence A153437 A023153 A023159
Adjacent sequences: A064483 A064484 A064485 this_sequence A064487 A064488 A064489
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KEYWORD
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nonn
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AUTHOR
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Labos E. (labos(AT)ana.sote.hu), Oct 04 2001
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