128959domain: NPropertiesPrimalityPrimeyesAppears in sequencesa(n) is the smallest prime such that a(1), ..., a(n-1) are squares mod a(n).at n=13A034698a(n) is square mod a(i), i < n.at n=27A034791Augmentation of the Catalan triangle, A009766. See Comments.at n=41A193560Prime numbersat n=12070