Primes of the form k!2+4, where k!2 is the double factorial number (A006852).
A288405
Primes of the form k!2+4, where k!2 is the double factorial number (A006852).
Terms
- a(0) =5a(1) =7a(2) =19a(3) =109a(4) =10399a(5) =34459429
External references
- oeis: A288405