Primes of the form k!3-9, where k!3 is the triple factorial number (A007661).
A289817
Primes of the form k!3-9, where k!3 is the triple factorial number (A007661).
Terms
- a(0) =19a(1) =71a(2) =271a(3) =3631a(4) =58231a(5) =209431a(6) =4188791a(7) =96342391a(8) =17041023991a(9) =72642169591
External references
- oeis: A289817