What is the sum of the first 14 terms in the Fibonacci Sequence?

Question

anonymous · Answer

(plural Fi·bo·nac·ci se·quenc·es) 
noun 
 sequence of numbers: an unending series of numbers in which each number except for the first two is the sum of the preceding two, e.g. 0,1,1,2,3,5,8.... 
Such sequences frequently have applications in botany, psychology, and astronomy. 


[After Leonardo Fibonacci, 13th century Italian mathematician]

anonymous · Answer

http://mathforum.org/library/drmath/view/52707.html

anonymous · Answer

0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233
add these using a calculator...
sum=609

anonymous · Answer

it is the sixteenth Fibonacci number minus one

anonymous · Answer

in other words 
$$\sum_{k=1}^nf_k=f_{n+2}-1$$