What is the recurrence for an=5na_n = 5^nan=5n?
an=5an−1a_n = 5a_{n-1}an=5an−1
an=an−1+5a_n = a_{n-1} + 5an=an−1+5
an=2an−1a_n = 2a_{n-1}an=2an−1
an=5na_n = 5nan=5n