256998domain: NAppears in sequencesa(n) = (F(2n+3) - F(n))/2 where F() = Fibonacci numbers A000045.at n=13A027994A Fibonacci convolution.at n=14A164267G.f. satisfies: A(x) = Sum_{n>=0} x^n * Product_{d|n} A(x^d)^(n/d).at n=12A206302