Primes of the form k!7+1, where k!7 is the septuple factorial number (A114799).
A288717
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) =19a(5) =31a(6) =61a(7) =79a(8) =12241a(9) =19801a(10) =29641a(11) =76561a(12) =379441a(13) =2016841a(14) =2756161a(15) =1838865601a(16) =4150656721a(17) =337767408001a(18) =956960801281
External references
- oeis: A288717