Numbers whose least quadratic nonresidue (A020649) is 19.

Terms

a(0) =5711a(1) =9239a(2) =10391a(3) =10799a(4) =11422a(5) =14951a(6) =18478a(7) =20782a(8) =21598a(9) =29902a(10) =33049a(11) =34319a(12) =36599a(13) =37489a(14) =40031a(15) =42719a(16) =44641a(17) =49009a(18) =49921a(19) =51769a(20) =53089a(21) =55441a(22) =57119a(23) =59929a(24) =61151a(25) =61871a(26) =63361a(27) =66098a(28) =67369a(29) =67679