Least quadratic nonresidue modulo n (with n >= 3).

Terms

a(0) =2a(1) =2a(2) =2a(3) =2a(4) =3a(5) =2a(6) =2a(7) =2a(8) =2a(9) =2a(10) =2a(11) =3a(12) =2a(13) =2a(14) =3a(15) =2a(16) =2a(17) =2a(18) =2a(19) =2a(20) =5a(21) =2a(22) =2a(23) =2a(24) =2a(25) =2a(26) =2a(27) =2a(28) =3a(29) =2