Please evaluate the solution of the given question
Question- Modify the Pascal triangle rule for a semi-in nite chain with a perfectly reflecting wall between sites x=-2 and x=- 1, with the walker starting at x= 0.
Part 1- What is the probability to be at site x= 8 at time t= 14.
Part 2- Find it and illustrate this with printing out a Pascal triangle.
I want help to compute the probability of given problem and write these probabilities also as a mirror charge type superposition of binomials.