A043742 Numbers whose number of runs in the base-2 representation is congruent to 3 mod 7.

5, 9, 11, 13, 17, 19, 23, 25, 27, 29, 33, 35, 39, 47, 49, 51, 55, 57, 59, 61, 65, 67, 71, 79, 95, 97, 99, 103, 111, 113, 115, 119, 121, 123, 125, 129, 131, 135, 143, 159, 191, 193, 195, 199, 207, 223, 225, 227, 231, 239, 241, 243, 247

Offset

1,1

Links

Harvey P. Dale, Table of n, a(n) for n = 1..2500

Mathematica

Select[Range[250], Mod[Length[Split[IntegerDigits[#, 2]]], 7]==3&] (* Harvey P. Dale, Mar 30 2022 *)

Crossrefs

Sequence in context: A043731 A043570 A043736 * A043749 A043757 A043766

Adjacent sequences: A043739 A043740 A043741 * A043743 A043744 A043745

Keyword

nonn,base

Author

Clark Kimberling

Status

approved