[R] Finding combination of states

[Christofer Bogaso]

Let say I have 3 time points.as T0, T1, and T2.(number of such time
points can be arbitrary) In each time point, an object can be any of 5
states, A, B, C, D, E (number of such states can be arbitrary)

I need to find all possible ways, how that object starting with state
B (say) at time T0, can be on state E (example) in time T2

For example one possibility is BAE etc.

Is there any function available with R, that can give me a vector of
such possibilities for arbitrary number of states, time, and for a
given initial and final (desired) states?

ANy pointer will be very appreciated.

Thanks for your time.