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A268314
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First term of a run of at least 11 consecutive integers which are not squarefree.
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6
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221167422, 1407472722, 3639720042, 3865964268, 4982931368, 5005996146, 7108776620, 8044261244, 10249558974, 12766690268, 13585489166, 19792784322, 26995377572, 30410811296, 30477326444, 32070270968, 34317891368, 39956560824, 40841363528, 42216508746, 43133805944, 46295514872, 47255689915
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OFFSET
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1,1
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COMMENTS
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a(23) is the first term beginning a 12-chain. - Bill Hannaford, Oct 06 2016
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LINKS
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FORMULA
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MATHEMATICA
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s11[x_] := Apply[Plus, Table[Abs[MoebiusMu[x+j]], {j, 0, 10}]]; Do[If[Equal[s11[n], 0], Print[n]], {n, 10^8, 10^13}]
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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