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A051401 Smallest value of x such that M(x) = -n, where M(x) is Mertens's function A002321. 11
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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

T. D. Noe, Table of n, a(n) for n = 1..1000

EXAMPLE

M(31) = -4 and that is the first one, so a(4) = 31.

MATHEMATICA

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 *)

CROSSREFS

Cf. A002321, A008683, A051400, A051402.

Sequence in context: A135532 A127600 A262237 * A304357 A296023 A027039

Adjacent sequences: A051398 A051399 A051400 * A051402 A051403 A051404

KEYWORD

nonn

AUTHOR

Jud McCranie

STATUS

approved

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Last modified January 31 14:20 EST 2023. Contains 359975 sequences. (Running on oeis4.)