Primes of the form R(m!!+1).A173915Primes of the form R(m!!+1).Terms a(0) =2a(1) =3a(2) =61a(3) =601a(4) =1483a(5) =631531a(6) =12912301a(7) =67501394731a(8) =622341432613External referencesoeis: A173915