117157domain: NAppears in sequencesStrong pseudoprimes to base 34.at n=27A020260Strong pseudoprimes to base 35.at n=25A020261Strong pseudoprimes to base 38.at n=35A020264Strong pseudoprimes to base 39.at n=33A020265Origin numbers: integers unreachable by Bergerson's Alpha construction (see the Ross Eckler link).at n=6A068196