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A070892
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Numbers n such that absolute value of Sum_{k=1..n} mu(k)/k sets a new minimum.
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0
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1, 2, 3, 5, 7, 11, 61, 154, 857, 859, 2141, 2153, 2161, 39011, 39065, 39095, 56026, 56045, 56101, 56189, 56242, 56245, 56254, 56263, 56359, 2985634, 2985703, 2986715, 2986718, 2986721, 16904494, 16904497, 16904531, 16904534
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OFFSET
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1,2
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LINKS
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MATHEMATICA
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s = 1; t = 0; Do[t = t + MoebiusMu[n] / n; If[ s > Abs[t], s = Abs[t]; Print[n]], {n, 1, 2 * 10^7}]
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PROG
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(PARI) t = 0.; t1 = 1; v = []; for( n = 1, 1400, t = t + moebius( n) / n; if( (t / t1 )^2 < 1, t1 = t; v = concat( v, n), )); v
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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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