OFFSET
1,2
COMMENTS
This sequence consists of the terms of A144794 together with those integers of the form 2^k -1.
LINKS
Michael De Vlieger, Table of n, a(n) for n = 1..10000
MATHEMATICA
Select[Range@ 160, Select[Split@ IntegerDigits[#, 2], Length[#] == 1 && First[#] == 0 &] == {} &] (* Michael De Vlieger, Sep 03 2017 *)
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Leroy Quet, Dec 08 2009
EXTENSIONS
Extended by Ray Chandler, Dec 18 2009
STATUS
approved