Numbers k such that k^2 + k + 17 is composite.

Terms

a(0) =16a(1) =17a(2) =20a(3) =25a(4) =32a(5) =33a(6) =34a(7) =36a(8) =39a(9) =41a(10) =43a(11) =48a(12) =50a(13) =51a(14) =52a(15) =54a(16) =55a(17) =58a(18) =61a(19) =65a(20) =66a(21) =67a(22) =68a(23) =69a(24) =71a(25) =74a(26) =77a(27) =78a(28) =80a(29) =83