1036183domain: NPropertiesPrimalityPrimeyesAppears in sequencesa(0)=a(1)=a(2)=a(3)=a(4)=a(5)=1; a(n)=a(n-1)+a(n-2)-a(n-4)+a(n-6) for n>=6.at n=38A109537a(n) = prime((a(n-1) + a(n-2)) / 2) for n>1, with a(0) = 3, a(1) = 5.at n=11A225504Prime numbersat n=81141