A346995 - OEIS

A346995

Denominators of the squared radii corresponding to circular disks covering record numbers of grid points A346993 of the square lattice.

1, 4, 2, 1, 4, 16, 1, 2, 50, 18, 4, 36, 1, 4, 2, 4, 722, 16, 2, 50, 1, 4, 18, 1682, 100, 2, 1, 25, 2178, 50, 2, 4, 1, 64, 196, 1, 242, 2178, 242, 25, 1, 4, 578, 98, 9, 4, 2, 338, 18, 3698, 3844, 98, 98, 400, 3844

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

LINKS

Table of n, a(n) for n=1..55.

Hugo Pfoertner, Visualization of configurations with maximum number of covered grid points.

EXAMPLE

0/1, 1/4, 1/2, 1/1, 5/4, 25/16, 2/1, 5/2, 169/50, 65/18, 17/4, 169/36, ...

For detailed examples see A346993 and the linked pdf.

CROSSREFS

The corresponding numerators are A346994.

Cf. A346993, A123690, A346124, A346784, A346785.

Sequence in context: A356631 A210937 A016506 * A228132 A146321 A133455

Adjacent sequences: A346992 A346993 A346994 * A346996 A346997 A346998

KEYWORD

nonn,frac

AUTHOR

Hugo Pfoertner, Aug 16 2021

STATUS

approved