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

Offset: 1

Author

Clark Kimberling

Keywords

• nonn
• base

Comments

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

Programs

Mathematica

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