a(n) = numerator of b(n), where b(1) = 2, b(n) = b(n-1) - 1/b(n-1).

A127814

a(n) = numerator of b(n), where b(1) = 2, b(n) = b(n-1) - 1/b(n-1).

Terms

    a(0) =2a(1) =3a(2) =5a(3) =-11a(4) =779a(5) =497941a(6) =181860254581

External references