10035601domain: NPropertiesPrimalityPrimeyesAppears in sequencesa(n) = a(n-1) + a(n-2) + a(n-3) with a(0)=2, a(1)=1, a(2)=2.at n=27A214899Primes in the tribonacci-like sequence A214899.at n=5A230607Prime numbersat n=666800