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Dec 21, 2018 at 21:26 answer added Sean Eberhard timeline score: 1
Dec 20, 2018 at 19:23 comment added Rodrigo Looks like your question is related to mine mathoverflow.net/questions/319130/… (I didn't see it before posting mine), though I think there is a larger hope a "number theory" argument will help with yours since you want the points to be exactly on the sphere.
Dec 16, 2018 at 0:22 comment added Joseph O'Rourke The earlier MO question, "What is the smallest sphere whose surface includes 100 integer points?", even though phrased for origin-centered spheres, contains some info on off-origin spheres. For example, "The sphere centred on $(1,1,1)/2$ and radius $\sqrt{131}/2\approx 5.723$ contains $120$ points with integer coordinates."
Dec 15, 2018 at 17:42 history edited Right CC BY-SA 4.0
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Dec 15, 2018 at 17:36 history asked Right CC BY-SA 4.0