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A043727
Numbers whose number of runs in the base-2 representation is congruent to 3 mod 4.
2
5, 9, 11, 13, 17, 19, 23, 25, 27, 29, 33, 35, 39, 47, 49, 51, 55, 57, 59, 61, 65, 67, 71, 79, 85, 95, 97, 99, 103, 111, 113, 115, 119, 121, 123, 125, 129, 131, 135, 143, 149, 159, 165, 169, 171, 173, 181, 191, 193, 195, 199, 207, 213
OFFSET
1,1
MATHEMATICA
Select[Range[300], Mod[Length[Split[IntegerDigits[#, 2]]], 4]==3&] (* Harvey P. Dale, Dec 31 2017 *)
CROSSREFS
Sequence in context: A294277 A373674 A043721 * A043731 A043570 A043736
KEYWORD
nonn,base
STATUS
approved