168629domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 35.at n=15A031623Smaller of twin primes whose middle term is a multiple of A002110(5)=2310.at n=13A060231Prime numbersat n=15384