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A084237
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a(n) = M(10^n), where M(n) is Mertens's function.
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4
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1, -1, 1, 2, -23, -48, 212, 1037, 1928, -222, -33722, -87856, 62366, 599582, -875575, -3216373, -3195437, -21830259
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,4
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LINKS
| B. Boncompagni, Selected values of the Mertens function
Eric Weisstein's World of Mathematics, Mertens Function
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FORMULA
| Mertens's function: Sum_{1<=k<=n} mu(k), where mu = Moebius function (A008683).
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MATHEMATICA
| s = 0; i = 1; Do[ While[i <= 10^n, s = s + MoebiusMu[i]; i++ ]; Print[s], {n, 0, 50}]
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CROSSREFS
| Cf. A002321.
Sequence in context: A049592 A057621 A074809 * A106928 A070934 A031915
Adjacent sequences: A084234 A084235 A084236 * A084238 A084239 A084240
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KEYWORD
| sign
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AUTHOR
| Robert G. Wilson v (rgwv(AT)rgwv.com), May 15 2003
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EXTENSIONS
| More terms from Eric Weisstein (eric(AT)weisstein.com), Jun 27, 2003
a(17) from Bernardo Boncompagni (redgolpe(AT)redgolpe.com), Jul 06 2011
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