163427632718domain: NAppears in sequencesSolution to a binomial problem together with companion sequence A081016(n-1).at n=13A089508Numerator of Sum_{k=1..n} 1/(Fibonacci(k)*Fibonacci(k+2)).at n=26A119996a(n) = F(n)*F(n+1) - (-1)^n, where F = A000045.at n=28A260259