OFFSET
1,2
COMMENTS
Conjecture: -2 < n*sqrt(3) - a(n) < 4 for n >= 1.
LINKS
Clark Kimberling, Table of n, a(n) for n = 1..10000
EXAMPLE
The first 10 letters of the word in A284505 are 1100110011, in which the positions of 1 are 1,2,5,6,9,10.
MATHEMATICA
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Apr 04 2017
STATUS
approved