

A239391


The record values of d for the n in A239390.


2



1, 3, 5, 7, 11, 13, 17, 29, 37, 41, 43, 67, 95, 97, 109, 113, 115, 119, 167, 179, 181, 205, 211, 215, 229, 235, 265, 281, 319, 359, 373, 401, 413, 421, 439, 443, 461, 505, 545, 559, 719, 745, 775, 941
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OFFSET

1,2


LINKS



MATHEMATICA

greatestK[n_] := Module[{k = 1}, While[! PrimeQ[n^2 + (n  k)^2], k++]; k]; nn = 10000; t = {}; kMax = 0; Do[k = greatestK[n]; If[k > kMax, kMax = k; AppendTo[t, {n, k}]], {n, 2, nn}]; Transpose[t][[2]]


CROSSREFS

Cf. A069002 (least number d such that n^2 + (nd)^2 is prime).


KEYWORD

nonn,more


AUTHOR



EXTENSIONS



STATUS

approved



