Primes of the form k!7-1, where k!7 is the septuple factorial number (A114799).
A289757
Primes of the form k!7-1, where k!7 is the septuple factorial number (A114799).
Terms
- a(0) =2a(1) =3a(2) =5a(3) =7a(4) =17a(5) =29a(6) =43a(7) =59a(8) =97a(9) =509a(10) =1559a(11) =12239a(12) =198719a(13) =379439a(14) =633599a(15) =1136678399a(16) =33739804799a(17) =99298742399
External references
- oeis: A289757