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A043744 Numbers whose number of runs in the base-2 representation is congruent to 5 mod 7. 0
21, 37, 41, 43, 45, 53, 69, 73, 75, 77, 81, 83, 87, 89, 91, 93, 101, 105, 107, 109, 117, 133, 137, 139, 141, 145, 147, 151, 153, 155, 157, 161, 163, 167, 175, 177, 179, 183, 185, 187, 189, 197, 201, 203, 205, 209, 211, 215, 217 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
MATHEMATICA
Select[Range[300], Mod[Length[Split[IntegerDigits[#, 2]]], 7]==5&] (* Harvey P. Dale, Jul 08 2023 *)
CROSSREFS
Sequence in context: A043572 A043728 A043738 * A043751 A043759 A043768
KEYWORD
nonn,base
AUTHOR
STATUS
approved

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Last modified March 1 22:23 EST 2024. Contains 370443 sequences. (Running on oeis4.)