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 A346994 Numerators of the squared radii corresponding to circular disks covering record numbers of grid points A346993 of the square lattice. 6
 0, 1, 1, 1, 5, 25, 2, 5, 169, 65, 17, 169, 5, 25, 13, 29, 5525, 125, 17, 481, 10, 45, 205, 19721, 1189, 25, 13, 338, 29725, 697, 29, 65, 17, 1105, 3445, 18, 4453, 40885, 4625, 481, 20, 85, 12505, 2125, 200, 89, 45, 7921, 425, 89725, 93925, 2405, 2465, 10201, 98345 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,5 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 denominators are A346995. Cf. A346993, A123690, A346124, A346784, A346785. All terms of a(n)/A346995(n) with the sole exception of 1/4 are terms of A192493/A192494. Sequence in context: A271378 A305837 A175555 * A070387 A331272 A123748 Adjacent sequences: A346991 A346992 A346993 * A346995 A346996 A346997 KEYWORD nonn,frac AUTHOR Hugo Pfoertner, Aug 16 2021 STATUS approved

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Last modified April 14 14:52 EDT 2024. Contains 371665 sequences. (Running on oeis4.)