OFFSET
1,1
COMMENTS
Conjecture: a(n)/n -> 2.
LINKS
Clark Kimberling, Table of n, a(n) for n = 1..10000
EXAMPLE
As a word, A285142 = 001110..., in which 1 is in positions 3,4,5,9,...
MATHEMATICA
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Apr 21 2017
STATUS
approved