Primes of the form k!10 - 1, where k!10 is the decuple factorial number (A288327).
A289754
Primes of the form k!10 - 1, where k!10 is the decuple factorial number (A288327).
Terms
- a(0) =2a(1) =3a(2) =5a(3) =7a(4) =23a(5) =199a(6) =239999a(7) =7354367a(8) =719999999a(9) =2287853567a(10) =50399999999
External references
- oeis: A289754