Primes of the form k!2+256, where k!2 is the double factorial number (A006852).
A288411
Primes of the form k!2+256, where k!2 is the double factorial number (A006852).
Terms
- a(0) =257a(1) =271a(2) =1201a(3) =10651a(4) =135391a(5) =316234143481
External references
- oeis: A288411