Numbers k such that k^2 + k + 41 is composite.

Terms

a(0) =40a(1) =41a(2) =44a(3) =49a(4) =56a(5) =65a(6) =76a(7) =81a(8) =82a(9) =84a(10) =87a(11) =89a(12) =91a(13) =96a(14) =102a(15) =104a(16) =109a(17) =117a(18) =121a(19) =122a(20) =123a(21) =126a(22) =127a(23) =130a(24) =136a(25) =138a(26) =140a(27) =143a(28) =147a(29) =155