A043726 - OEIS

A043726

Numbers whose number of runs in the base-2 representation is congruent to 2 mod 4.

2, 4, 6, 8, 12, 14, 16, 24, 28, 30, 32, 42, 48, 56, 60, 62, 64, 74, 82, 84, 86, 90, 96, 106, 112, 120, 124, 126, 128, 138, 146, 148, 150, 154, 162, 164, 166, 168, 172, 174, 178, 180, 182, 186, 192, 202, 210, 212, 214, 218, 224, 234, 240

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OFFSET

1,1

COMMENTS

All terms are even. - Harvey P. Dale, Sep 26 2018

LINKS

Table of n, a(n) for n=1..53.

MATHEMATICA

Select[Range[2, 250, 2], Mod[Length[Split[IntegerDigits[#, 2]]], 4]==2&] (* Harvey P. Dale, Sep 26 2018 *)

CROSSREFS

Sequence in context: A376508 A331681 A006998 * A043730 A043735 A043741

Adjacent sequences: A043723 A043724 A043725 * A043727 A043728 A043729

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved