login
A071384
Radii of the circles around (0,0) that contain record numbers of lattice points, rounded up to the next integer.
4
0, 1, 3, 5, 9, 19, 34, 65, 75, 167, 269, 372, 401, 896, 1444, 2002, 2435, 5445, 8779, 12175, 15591, 34862, 56213, 77953, 113501, 231769, 253794, 409231, 567501, 886464, 1687299, 1982193, 3196190, 4432317, 7146896, 13178226, 15980946
OFFSET
1,3
COMMENTS
a(n)^2 = A071383(n) for a(n) = 1, 5, 65, ... .
FORMULA
a(n) = ceiling ( A071383(n)^(1/2) ).
CROSSREFS
KEYWORD
nonn
AUTHOR
Hugo Pfoertner, May 23 2002
EXTENSIONS
Description clarified by Günter Rote, Sep 13 2023
STATUS
approved