login
A164708
Those positive integers missing from sequence A164707. Those positive integers that, when written in binary, contain at least two runs of 1's that are of differing lengths.
1
11, 13, 19, 22, 23, 25, 26, 29, 35, 38, 39, 43, 44, 45, 46, 47, 49, 50, 52, 53, 55, 57, 58, 59, 61, 67, 70, 71, 75, 76, 77, 78, 79, 83, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 97, 98, 100, 101, 103, 104, 105, 106, 107, 109, 110, 111, 113, 114, 115, 116, 117, 118, 121
OFFSET
1,1
COMMENTS
Clarification: A binary number consists of "runs" completely of 1's alternating with runs completely of 0's. No two or more runs all of the same digit are adjacent.
MATHEMATICA
Select[Range[200], Length[Union[Length/@Select[Split[IntegerDigits[ #, 2]], MemberQ[ #, 1]&]]]>1&] (* Harvey P. Dale, May 28 2016 *)
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Leroy Quet, Aug 23 2009
EXTENSIONS
More terms from Max Alekseyev, Feb 03 2010
STATUS
approved