Least positive integer k with prime(k)^2-2 and prime(prime(k))^2-2 both prime such that prime(k*n)^2-2 and prime(prime(k*n))^2-2 are all prime.

A261281

Least positive integer k with prime(k)^2-2 and prime(prime(k))^2-2 both prime such that prime(k*n)^2-2 and prime(prime(k*n))^2-2 are all prime.

Terms

    a(0) =1a(1) =1a(2) =319a(3) =134a(4) =34a(5) =62a(6) =2a(7) =536a(8) =5215a(9) =15a(10) =3965a(11) =2168a(12) =34a(13) =1a(14) =1a(15) =737a(16) =2a(17) =7075a(18) =3699a(19) =419a(20) =132a(21) =372a(22) =14a(23) =2a(24) =34a(25) =2a(26) =52a(27) =1a(28) =668a(29) =36561

External references