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 A192494 Denominators of squared radii of circumcircles of non-degenerate triangles with integer vertex coordinates. 12
 2, 1, 4, 18, 16, 1, 2, 9, 8, 4, 98, 50, 18, 1, 16, 4, 98, 50, 2, 64, 242, 36, 18, 1, 64, 16, 9, 196, 50, 4, 338, 98, 2, 49, 64, 242, 25, 162, 18, 9, 4, 338, 578, 256, 98, 50, 324, 722, 242, 16, 1, 18, 8, 100, 2, 98, 98, 49, 242, 25, 722, 1058, 1, 36, 32, 16, 121, 4, 578, 338, 18, 256, 98, 9, 144, 484, 50, 64, 50, 242, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Hugo Pfoertner, Table of n, a(n) for n = 1..9089, covering range R^2 <= 100. EXAMPLE The smallest triangle of lattice points {(0,0),(1,0),(0,1)} has circumradius R=sqrt(2)/2, i.e., R^2=1/2. Therefore A192493(1)=1, a(1)=2. CROSSREFS Cf. A192493 (corresponding numerators). Cf. A346993, A346994, A346995. Sequence in context: A025228 A267377 A132945 * A013156 A012925 A012930 Adjacent sequences: A192491 A192492 A192493 * A192495 A192496 A192497 KEYWORD nonn,frac AUTHOR Hugo Pfoertner, Jul 10 2011 STATUS approved

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Last modified June 5 02:01 EDT 2023. Contains 363130 sequences. (Running on oeis4.)