a(n) = Fibonacci(binomial(n+2,2)).

A081667

a(n) = Fibonacci(binomial(n+2,2)).

Terms

    a(0) =1a(1) =2a(2) =8a(3) =55a(4) =610a(5) =10946a(6) =317811a(7) =14930352a(8) =1134903170a(9) =139583862445

External references