a(n) gives least prime for which the n-th prime is the least prime which is not a primitive root of a(n) (see A060084), or 0 if the n-th prime never occurs in A060084.
A060085
a(n) gives least prime for which the n-th prime is the least prime which is not a primitive root of a(n) (see A060084), or 0 if the n-th prime never occurs in A060084.
Terms
- a(0) =2a(1) =3a(2) =5a(3) =53a(4) =773a(5) =173a(6) =293a(7) =2477a(8) =22613a(9) =9173a(10) =61613a(11) =280013a(12) =92333a(13) =74093a(14) =170957a(15) =360293a(16) =679733a(17) =36300197a(18) =2004917a(19) =69009533a(20) =138473837a(21) =237536213a(22) =777133013a(23) =883597853a(24) =2411100677a(25) =3519879677a(26) =2050312613a(27) =19570048973a(28) =80471253917a(29) =65315700413
External references
- oeis: A060085