A051401 Smallest value of x such that M(x) = -n, where M(x) is Mertens's function A002321.

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

Offset: 1

Author

Jud McCranie

Keywords

• nonn

Examples

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

Links

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

Crossrefs

Cf. A002321, A008683, A051400, A051402.

Programs

Mathematica

s=0; t=0; Do[s=s+MoebiusMu[n]; If[sRobert G. Wilson v, Jul 03 2000 *)