%I #19 Feb 10 2021 03:29:44
%S 7,10,21,37,40,53,55,57,71,89,108,134,135,136,151,152,174,176,178,194,
%T 196,223,226,263,264,265,267,268,312,337,338,339,341,342,343,345,359,
%U 361,362,366,384,388
%N Numbers k such that pi(k) == 0 (mod 4), where pi() = A000720, and such that prime(k) == 1 (mod 4).
%t a = Flatten[Table[If[Mod[PrimePi[n], 4] == 0&& Mod[Prime[n], 4]  1 == 0, n, {}], {n, 1, 200}]]
%Y Cf. A000720. Intersection of A080147 and A120309.
%K nonn
%O 1,1
%A _Roger L. Bagula_, Jun 20 2006
%E Edited and more terms added by _Michel Marcus_, Jun 01 2013
%E Offset corrected by _Michel Marcus_, Feb 10 2021
