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A071760
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Denominators of record absolute values of partial sums of Sum (mu(n)/n).
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1
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OFFSET
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1,1
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COMMENTS
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a(1) = 2 because the first minimum of sum(mu(n)/n), n>1, is 1-1/2 = 1/(2).
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LINKS
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PROG
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(PARI) t = 0; t1 = 1; v = []; for( n = 1, 200, t = t + moebius( n) / n; if( ( t / t1)^2 < 1, t1 = t; v = concat( v, denominator( t)), )); v
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CROSSREFS
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KEYWORD
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nonn,frac
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AUTHOR
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STATUS
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approved
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