Smallest number with n as least nonnegative primitive root, or 0 if no such number exists.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =0a(5) =6a(6) =41a(7) =22a(8) =0a(9) =0a(10) =313a(11) =118a(12) =4111a(13) =457a(14) =1031a(15) =439a(16) =0a(17) =262a(18) =53173a(19) =191a(20) =107227a(21) =362a(22) =3361a(23) =842a(24) =533821a(25) =0a(26) =12391a(27) =0a(28) =133321a(29) =2906