2725491954domain: NAppears in sequencesa(n) = Sum_{k=0..n} (-1)^k * binomial(n+2*k-1,n-k) * Fibonacci(k+1).at n=25A390854a(n) = Sum_{k=0..n} (-1)^k * binomial(n+2*k+1,n-k) * Fibonacci(k+1).at n=24A390856a(n) = Sum_{k=0..n} (-1)^k * binomial(n+2*k+5,n-k) * Fibonacci(k+1).at n=22A390858