Squarefree numbers congruent to 3 mod 4.

Terms

a(0) =3a(1) =7a(2) =11a(3) =15a(4) =19a(5) =23a(6) =31a(7) =35a(8) =39a(9) =43a(10) =47a(11) =51a(12) =55a(13) =59a(14) =67a(15) =71a(16) =79a(17) =83a(18) =87a(19) =91a(20) =95a(21) =103a(22) =107a(23) =111a(24) =115a(25) =119a(26) =123a(27) =127a(28) =131a(29) =139