

A175815


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


0



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
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OFFSET

1,1


COMMENTS

Conjecturally infinite.  Charles R Greathouse IV, May 15 2013


LINKS

Table of n, a(n) for n=1..46.


EXAMPLE

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


MATHEMATICA

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


CROSSREFS

Cf. A175794
Sequence in context: A092068 A093520 A051870 * A069130 A124711 A126372
Adjacent sequences: A175812 A175813 A175814 * A175816 A175817 A175818


KEYWORD

nonn,base


AUTHOR

Michel Lagneau, Sep 09 2010


STATUS

approved



