A recursive function is defined by: an = 2a n - 1 with a0 = 1

Question

Find the value of a3

Answer 1

a_n = 2a_n-1 where a₁ = 1
tells me your sequence starts with 1, and each new term is double the
one before it, that is .....
1, 2, 4, 8, ....

Answer 2

Thank you