A043691 a(n) = (s(n)-1)/2, where s(n) is the n-th number whose base-2 representation has exactly 11 runs.

682, 1194, 1322, 1354, 1362, 1364, 1365, 1366, 1370, 1386, 1450, 1706, 2218, 2346, 2378, 2386, 2388, 2389, 2390, 2394, 2410, 2474, 2602, 2634, 2642, 2644, 2645, 2646, 2650, 2666, 2698, 2706, 2708, 2709, 2710, 2714, 2722

Offset

1,1

Links

Harvey P. Dale, Table of n, a(n) for n = 1..10000

Mathematica

(#-1)/2&/@Select[Range[10000], Length[Split[IntegerDigits[#, 2]]]==11&] (* Harvey P. Dale, Nov 24 2024 *)

Crossrefs

Sequence in context: A202908 A309245 A118509 * A043577 A043763 A200860

Adjacent sequences: A043688 A043689 A043690 * A043692 A043693 A043694

Keyword

nonn,base

Author

Clark Kimberling

Status

approved