Abstract: The concept of balancing and cobalancing numbers is
generalized to an arbitrary sequence; thereby sequence balancing numbers and
sequence cobalancing numbers are introduced and defined. It is proved that
there does not exist any sequence balancing number in the Fibonacci sequence
and the only sequence cobalancing number in the Fibonacci sequence is F2 = 1.
Higher order balancing and cobalancing numbers are also introduced. A result
on nonexistence of third order balancing and cobalancing numbers is also
proved. A conjecture on the nonexistence of solutions of higher order balancing
and cobalancing numbers is also stated at the end.