187632

Appears in sequences

• G.f. satisfies: A(x) = (1 + x*A(x))^2 * (1 + 2*A(x)) / 3.at n=5A231552
• a(n) = Sum_{k=0..n} (-1)^k * binomial(n+k,n-k) * Fibonacci(k+1).at n=18A390851