

A120311


Numbers k such that pi(k) == 0 (mod 4), where pi() = A000720, and such that prime(k) == 3 (mod 4).


0



8, 9, 19, 20, 22, 38, 39, 54, 56, 58, 72, 90, 91, 92, 93, 94, 95, 96, 107, 131, 132, 133, 153, 154, 155, 156, 173, 175, 177, 193, 195, 224, 225, 239, 240, 266, 281, 282, 311, 340, 344, 346, 360, 363, 364, 365, 383, 385, 386, 387
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OFFSET

1,1


LINKS



MATHEMATICA

a = Flatten[Table[If[Mod[PrimePi[n], 4] == 0&& Mod[Prime[n], 4] 3 == 0, n, {}], {n, 1, 200}]]
Select[Range[400], Mod[PrimePi[#], 4]==0&&Mod[Prime[#], 4]==3&] (* Harvey P. Dale, Apr 17 2019 *)


CROSSREFS



KEYWORD

nonn


AUTHOR



EXTENSIONS



STATUS

approved



