Pseudoprimes n to base 2 such that n-4, n-2 and n+2 are primes.
A228575
Pseudoprimes n to base 2 such that n-4, n-2 and n+2 are primes.
Terms
- a(0) =645a(1) =656601a(2) =6212361a(3) =18958567881a(4) =287468425245a(5) =626160901281
External references
- oeis: A228575