

A175814


Numbers n such that the first n decimal digits of e contain equal numbers of even and odd decimal digits.


0



2, 4, 50, 68, 70, 72, 74, 352, 804, 808, 810, 812, 964, 966, 980, 982, 986, 988, 994, 996, 998, 1002, 1004, 1006, 1016, 1018, 1020, 1022, 1026, 1028, 1030, 1048, 1060, 1062, 1064, 1066, 1068, 1130, 1134, 1138, 1140, 1254, 1256, 1258, 1260, 1320, 1340, 2484
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OFFSET

1,1


COMMENTS

Numbers n such that the first n decimal digits of e contain equal numbers of even and odd decimal digits.


LINKS



EXAMPLE

4 is in the sequence because, with 4 digits of e = 2.718 > (1)^2 + (1)^7 + (1)^1 + (1)^8 = 0.


MATHEMATICA

L= Rest@FoldList[ Plus, 0, (1)^First@ RealDigits[E, 10, 3000]] ; Do[If [L[[n]]==0, Print[n]], {n, 3000}]


CROSSREFS



KEYWORD

nonn,base


AUTHOR



STATUS

approved



