OFFSET
0,3
COMMENTS
Inspired by A306486.
LINKS
Alois P. Heinz, Table of n, a(n) for n = 0..4024
FORMULA
EXAMPLE
a(4) = 4: in the interval [Pi^3, Pi^4) = [31.006..., 97.409...) = are four perfect squares: 36, 49, 64, 81.
MAPLE
a:= n-> (f-> f(n)-f(n-1))(i-> ceil(Pi^(i/2))):
seq(a(n), n=0..42);
CROSSREFS
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Feb 27 2019
STATUS
approved