45245801domain: NPropertiesPrimalityPrimeyesAppears in sequencesProduct representation of the Pell numbers A000129 and A002203.at n=24A072280a(n) = smallest prime which divides Pell(n) = A000129(n) but does not divide any Pell(k) for k<n, or -1 if no such prime exists.at n=48A246556Prime numbersat n=2732152