7793353domain: NPropertiesPrimalityPrimeyesAppears in sequencesa(n) = 3*a(n-1) - 3*a(n-3) + a(n-4) for n > 3, with a(0) = 1, a(1) = 3, a(2) = 9, a(3) = 27.at n=16A084707Prime numbersat n=526727