Which number should come next in the series 1-1- 2-3-5-8-13?

This is the series of square numbers, (16= 4*4). The next number is 5*5=25. ...

The next number is 25 but there are the sequence is infinite so there can be no end to the sequence. ...

The next number is -21

it should already have come out

There is no specific number. It all depends on what shows are good. Should a bunch of new series come out on year that nobody likes, many new series will come out to follow. That year, there would be many TV series. However, a year that has many great TV series that everybody watches would have little new series, thus having less TV series that year. ...

There should be 9 books total. The 6th should come out in April 2011.

its over but a new series by Riordan should show up around may

1 Another Answer Each number of the series appears to double as the series progresses: 1/12 (x2), 1/6 (x2), 1/3 (x2), 2/3, etc. This being so, the next number in the series would be 4/3 or 1-1/3 (2/3 x 2).....

The series appears to increase as follows: 1 (+3), 4 (+5), 9 (+7), 16,, etc. If so, the next number in the series would be 25 (16 + 9). * * * * * While mathematically equivalent, a simpler description is: 12, 22, 32, 42, 52 ... ...

how the hell should we know?

21 since the difference between each number is as in the order of the given pattern. so you add 13+8=21 ...

Noo he doesnt but he should!!!

It's called "the fear" and it should come out in a few months

The Pattern is 1^2- 2^2- 3^2- 4^2- 5^2 or 1 - 4 - 9 - 16 - 25 The next number in the series is 6^2 or 36 ...

This is the Fibonacci Series, where each term is the sum of the previous two. It continues 21, 34, 55 etc ...

This is the Fibonacci Series. Each term is the sum of the two previous terms. It continues 21, 34, 55, 89 ... ...

All odd numbers beginning from one, in a series. Also: Starting with 13, add 4 to each digit separately, and continue adding 4 to the result. answear is 2123 ...

Which number should come next at the end of this series: 1, 4, 9, 16? 1^2=1 2^2=4 3^2=9 4^2=16 5^2=25 Therefore, the next number should be 25 ...

In a series of numbers, there are rhythms that change. In the order of 100, 140, and 40, the number that would come next would be 80 because 40 should be added. ...

All of the volumes from the Fruits Basket series are out, and should be at your local bookstore. ...

They should have come standard with 75-series 14" tires

yes i think there is the adds should come out early 2011

Now Primeval is returning for a Series 4 and Series 5, Character Options should continue making the fantastic figures. Like last year and the year before, Primeval Series 3 figures should be released around Christmas or Easter. ...

18,21,17,20,16,19,15,18

The largest number of servings should come from the Bread, Cereal, Grains, and Rice family. 6-11 servings daily are recommended. ...