MathDB

3

Part of 2014 Korea Junior Math Olympiad

Problems(1)

how many ways are there to move n times following the arrows

Source: KJMO 2014 p3

5/2/2019
Find the number of nn-movement on the following graph, starting from SS. https://cdn.artofproblemsolving.com/attachments/2/0/4a23c83c7f5405575acbe6d09f202d87341337.png
combinatorics