1764391domain: NPropertiesPrimalityPrimeyesAppears in sequencesa(n) = a(n-1) + a(n-2) + a(n-3), with a(0) = 1, a(1) = a(2) = 4.at n=23A214826Prime terms in the tribonacci-like sequence A214826.at n=2A242316Prime numbersat n=132584