A175815 Numbers n such that the first n decimal digits of Euler's constant gamma contain equal numbers of even and odd decimal digits.

18, 52, 54, 58, 60, 62, 230, 234, 236, 242, 290, 292, 294, 298, 3668, 3670, 3674, 3676, 3680, 3682, 3714, 3716, 3760, 3762, 3774, 3776, 3796, 3798, 3816, 3818, 3826, 3828, 3832, 3838, 3840, 3866, 3868, 3872, 3874, 3876, 4148, 4186, 4190, 6018, 6024, 6036

Offset: 1

Author

Michel Lagneau, Sep 09 2010

Keywords

• nonn
• base

Comments

Conjecturally infinite. - Charles R Greathouse IV, May 15 2013

Examples

			18 is in the sequence because, the first 18 digits of gamma = .577215664901532860 have 9 even and 9 odd digits.
		

Crossrefs

Cf. A175794

Programs

Mathematica

L= Rest@FoldList[ Plus, 0, (-1)^First@ RealDigits[EulerGamma, 10, 7000]] ;Do[If [L[[n]]==0,Print[n]],{n,7000}]