OFFSET
1,2
COMMENTS
Conjecture: a(n)/n -> 3.61..., and if m denotes this number, then 0 < m - a(n)/n < 0 for n >= 1.
LINKS
Clark Kimberling, Table of n, a(n) for n = 1..10000
MATHEMATICA
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Jun 19 2017
STATUS
approved