The function f is defined by f(n) = f(n − 1) + f(n − 2). It is also true that f(1) = 3 and f(2) = 10. What is the value of f(6)
f(3) = f(2) + f(1) = 13
f (4) = f(3) + f(2) = 23
f ( 5) = f(4) + f(3) = 36
f ( 6) = f(5) + f(4) = 59
