The Staircase

Vaani and Raani are the twin daughters of Shankar. Once, Shankar took his daughters to his friend’s house. While they were ascending the staircase which had 13 steps, Raani asked Vaani to find the number of ways of climbing that staircase considering five as the maximum number of steps a person can climb at a time. Vaani could not answer the question. Shankar got near to the method of solving the problem but could not get the answer.


Can you find both the method of solving the problem and the answer?