27664033domain: NAppears in sequencesUnrestricted Perrin pseudoprimes.at n=5A013998Restricted Perrin pseudoprimes.at n=0A018187Strong pseudoprimes to bases 2 and 3.at n=14A072276Restricted Perrin pseudoprimes (Adams and Shanks definition).at n=0A275612Restricted Perrin pseudoprimes (Grantham definition).at n=0A275613