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A051401
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Smallest value of x such that M(x) = -n, where M(x) is Mertens's function A002321.
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11
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3, 5, 13, 31, 110, 114, 197, 199, 443, 659, 661, 665, 1105, 1106, 1109, 1637, 2769, 2770, 2778, 2791, 2794, 2795, 2797, 2802, 2803, 6986, 6987, 7013, 7021, 9717, 9718, 9719, 9721, 9726, 9741, 9749, 9822, 9823, 9830, 9831, 9833, 9857, 9861, 23833
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OFFSET
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1,1
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LINKS
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EXAMPLE
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M(31) = -4 and that is the first one, so a(4) = 31.
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MATHEMATICA
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s=0; t=0; Do[s=s+MoebiusMu[n]; If[s<t, t=s; Print[n]], {n, 1, 24100}] (* Robert G. Wilson v, Jul 03 2000 *)
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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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