OFFSET
1,2
COMMENTS
A 1 is isolated if it's not adjacent to another 1.
LINKS
Paolo Xausa, Table of n, a(n) for n = 1..10000
EXAMPLE
19 is a term because 19 = 10011_2 contains one isolated 1.
74 is a term because all ones in 74 = 1001010_2 are isolated.
MATHEMATICA
Select[Range[150], MemberQ[Split[IntegerDigits[#, 2]], {1}] &]
CROSSREFS
KEYWORD
nonn,base,easy
AUTHOR
Paolo Xausa, Oct 18 2024
STATUS
approved