Numbers k such that prime(prime(k)) = 2 (mod prime(k)), where prime(k) = A000040(k) is the k-th prime.

A156155

Numbers k such that prime(prime(k)) = 2 (mod prime(k)), where prime(k) = A000040(k) is the k-th prime.

Terms

    a(0) =2a(1) =6a(2) =21a(3) =51892a(4) =1686970

External references