216061domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of the form n^3 + n + 1.at n=23A095692Primes of the form p + (p-1)^3, where p is also prime.at n=7A165946Number of rooted unlabeled trees where the root node has degree 2 and both branches are distinct.at n=16A217420Prime numbersat n=19290