176221domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of the form x^2 + 17*y^2, where x and y=x+1 are consecutive natural numbers.at n=18A176622E.g.f. satisfies A(x) = exp( x*A(x)^2 / (1 - x*A(x))^3 ).at n=5A364942Prime numbersat n=16013