Smallest primitive root (in absolute value) of n-th prime.

Terms

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