Numbers k such that 2*k^2 - 2*k + 19 is composite.

Terms

a(0) =19a(1) =20a(2) =22a(3) =25a(4) =29a(5) =34a(6) =38a(7) =39a(8) =40a(9) =45a(10) =47a(11) =48a(12) =55a(13) =56a(14) =57a(15) =58a(16) =60a(17) =61a(18) =63a(19) =64a(20) =65a(21) =68a(22) =71a(23) =74a(24) =76a(25) =77a(26) =78a(27) =82a(28) =83a(29) =85