34961522domain: NAppears in sequencesa(n) = 2*Fibonacci(n)^2.at n=19A175395a(n) = a(n-1) + a(n-3) + a(n-4), where a(0) = 0, a(1) = 0, a(2) = 0, a(3) = 2.at n=39A295680