Smallest prime p such that the multiplicative order of 4 modulo p is 2*n, or 0 if no such prime exists.

A372797

Smallest prime p such that the multiplicative order of 4 modulo p is 2*n, or 0 if no such prime exists.

Terms

    a(0) =3a(1) =17a(2) =31a(3) =73a(4) =151a(5) =433a(6) =631a(7) =337a(8) =127a(9) =241a(10) =331a(11) =601a(12) =4421a(13) =673a(14) =3061a(15) =257a(16) =1429a(17) =1657a(18) =1103a(19) =3121a(20) =2143a(21) =1321a(22) =18539a(23) =1777a(24) =2351a(25) =37441a(26) =2971a(27) =2857a(28) =3191a(29) =17401

External references