Question

Find f(5) for this sequence:

f(1) = 2 and f(2) = 3, f(n) = f(1) + f(2) + f(n - 1), for n > 2.

f(5) = ______

Numerical Answers Expected!

Answer 1

f(n) = f(1) + f(2) + f(n - 1)
f(3) = f(1) + f(2) + f(3-1) = f(1) + f(2) + f(2) = 2 + 3 + 3 = 8
f(4) = ?
f(5) = ?

Answer 2

so you need to calcule first f(4) = f(1) +f(2) + f(4-1) = 2+3+8 =13

then f(5) = f(1) +f(2) +f(5-1) =2+3+f(4) = 5+13=18

do you understand it now ?

Answer 3

So whats f(5)? @aum

Answer 4

@jhonyy9

Answer 5

@ganeshie8

Answer 6

f(5)=18