14316557653domain: NAppears in sequencesa(n) = a(n-1) + 2*a(n-2), a(0)=2, a(1)=3.at n=33A048573a(n) = 4*a(n-1) + 1 with a(0) = 3.at n=16A072197a(n) = 4*a(n-2)+1 with initial terms 1,3,7.at n=33A283323