OFFSET
1,1
COMMENTS
a(n) - a(n-1) is in {1,2,4,5} for n>=2. Conjecture: a(n)/n -> 3.
LINKS
Clark Kimberling, Table of n, a(n) for n = 1..10000
EXAMPLE
As a word, A284789 = 0110000110001010..., in which 1 is in positions 2,3,8,9,13,...
MATHEMATICA
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, May 10 2017
STATUS
approved