1+1+2+3+5+8+13+21+34+55+89+144+233 = 609
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because you add the first 2 terms and the next tern was the the sum of the first 2 terms.
-- Start with 0, 1 . -- Each term is then the sum of the two terms before it.
There is no upper bound to the sum of the numbers in the Fibonacci sequence; both the last number in the series and consequently the sum of all these numbers can be made as large as desired by continuing the series to sufficiently many numbers.
The Fibonacci sequence is defined as follows:f(1) = 1,f(2) = 1 andf(n) = f(n-1) + f(n-2) for all n >2.The first two are the "seeds" and the third is the recursive formula which states that each term, after the second, is the sum of the two preceding terms.
Ignoring the "9" , then this is a Fibonacci sequence. 2,2,4,6,10 The first two terms are 'seed' terms then successive terms equal the sum of the two previous terms. 2 + 2 = 4 2 + 4 = 6 4 + 6 = 10 The next term would be 6 + 10 = 16.