OFFSET
0,1
LINKS
Clark Kimberling, Table of n, a(n) for n = 0..1000
FORMULA
a(n) = ceiling(Pi*2^n).
a(n) = A068425(n) + 1.
MATHEMATICA
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Oct 10 2017
STATUS
approved