281959domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumerators of continued fraction convergents to sqrt(533).at n=5A042018a(n) = 23*a(n-1) + a(n-2), starting with a(0) = 2 and a(1) = 23.at n=4A090314Seventh prime p such that (p+n)^2+n is prime but (p+j)^2+j is not prime for all 0<j<n.at n=28A238679Prime numbersat n=24601