213641domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of the form x^2 + 17*y^2, where x and y=x+1 are consecutive natural numbers.at n=22A176622Number of n X 2 binary arrays with some element plus some horizontally or vertically adjacent neighbor totalling two no more than once.at n=11A268744Prime numbersat n=19101